CN203949650U - A kind of multi-point displacement measurement mechanism - Google Patents

A kind of multi-point displacement measurement mechanism Download PDF

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CN203949650U
CN203949650U CN201420391206.7U CN201420391206U CN203949650U CN 203949650 U CN203949650 U CN 203949650U CN 201420391206 U CN201420391206 U CN 201420391206U CN 203949650 U CN203949650 U CN 203949650U
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chute
vernier
measuring staff
core measuring
useful range
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龚大成
车红昆
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Abstract

The utility model discloses a kind of multi-point displacement measurement mechanism.This device comprises a core measuring staff and n vernier, wherein n is more than or equal to 2 natural number, when this measurement mechanism work, each vernier movement locus is parallel with the length direction of core measuring staff, each vernier self-movement, and each vernier maximum stroke movement is more than or equal to the useful range of core measuring staff, the corresponding location measurement point independently of each vernier, the vernier number that participates in measuring is natural number m, and 1≤m≤n.This installs all self-movements in the chute of own unique correspondence of each vernier, having realized concurrent working between each vernier measures alone, the maximum measurement range of vernier covers core measuring staff maximum range, the interactional situation of vernier while there will not be traditional multi-point displacement measurement mechanism work.

Description

A kind of multi-point displacement measurement mechanism
Technical field
The present invention relates to a kind of multi-point displacement measurement mechanism, particularly relate to a kind of displacement measuring device of walk abreast between each vernier motion, independent measurement on direction of measurement.
Background technology
Traditional multi-point displacement measurement mechanism, has more than 2 and 2 vernier, is divided into two types.
Class1 is device when work, and multiple verniers are on same guide rail of a core measuring staff or move in same chute, the position of each vernier have front and back point or upper and lower dividing.There are following two kinds of mode of operations.
A kind of mode of operation is: the traverse measurement in multiple intervals that independently do not overlap of core measuring staff useful range of each vernier, each vernier, only to measure wherein one section of region in core measuring staff useful range, does not have intersection between described region.Suppose that core measuring staff useful range is 0 to 15 meter, need to survey 3 positions, there are 3 vernier a, b, c, the measurement range of vernier a is at 0 to 4 meter, the measurement range of vernier b is at 5 to 10 meters, the measurement range of vernier c is at 10.5 to 13 meters, and vernier a, vernier b, vernier c are operated in the difference interval of core measuring staff useful range, between each interval, do not overlap.
Another kind of mode of operation is: each vernier sequentially or upper and lower order traverse measurement in the useful range of core measuring staff useful range, hypothesis has 3 vernier a, b, a c, and each vernier is successively on same guide rail of core measuring staff or move in same chute.From the zero point of core measuring staff to maximum range direction, the putting in order as a, b, c of vernier.
Type 2 is by 2 or independently displacement measuring device parallel connection, is combined on unified direction of measurement the corresponding location measurement point independently of the vernier of each displacement measuring device.In the application of 3 displacement measurement of needs, by 3 displacement measuring device A, B, C parallel connection, each displacement measuring device has the core measuring staff of self, the measurement range of each displacement measuring device vernier, all in corresponding core measuring staff useful range, when work, between displacement measuring device A, B, C, be independent of each other.
The multi-point displacement measurement mechanism of above-mentioned two types exists following not enough:
In the multi-point displacement measurement mechanism of Class1, under the first mode of operation, the measurement range of neither one vernier or weighing journey can cover the useful range of core measuring staff, and between the measurement range of different verniers, there is no interval situation about overlapping.In the overlapping to some extent scene of the multiple vernier measurement ranges of needs, just cannot play a role.
In the multi-point displacement measurement mechanism of Class1, under the second mode of operation, although the measurement range between each vernier overlaps to a great extent, between each vernier, must follow set measuring sequence, arbitrary vernier can not be crossed the vernier of its forward/rear/top/below and measure.The measurement range of vernier is subject to the impact of its adjacent vernier current location, and each vernier can not be accomplished to move freely in self range ability.
, there are 2 or 2 above core measuring staffs in the multi-point displacement measurement mechanism of type 2, not only involve great expense, and also all many than core measuring staff multi-point displacement measurement mechanism complexity in various aspects such as installation, debugging, calibration, outputs.
So, need to design a kind of novel multi-point displacement measurement mechanism, in the situation that only using a core measuring staff, more than 2 and 2 vernier on it can independently freely be measured in the useful range of core measuring staff, the maximum measurement range of each vernier equals core measuring staff useful range, and the movement position of each vernier, measurement range are not affected by other verniers.
Summary of the invention
For above technical matters, the present invention proposes a kind of multi-point displacement measurement mechanism.
A kind of multi-point displacement measurement mechanism, this device comprises a core measuring staff and n vernier, wherein n is more than or equal to 2 natural number, when this measurement mechanism work, each vernier movement locus is parallel with the length direction of core measuring staff, each vernier self-movement, and each vernier maximum stroke movement is more than or equal to the useful range of core measuring staff, the corresponding location measurement point independently of each vernier, the vernier number that participates in measuring is natural number m, and 1≤m≤n.
There are chute or guide rail in described core measuring staff surface, and described chute is linear pattern, and described guide rail is linear pattern, and the rectilinear direction of chute, guide rail is parallel with the length direction of core measuring staff, and when described measurement mechanism work, vernier is along chute or guide rail movement.
Described core measuring staff smooth surface, without chute, without guide rail, when described measurement mechanism work, vernier is suspended in core measuring staff surface.
It is cylindrical that described core measuring staff has the part of chute or guide rail, between chute and chute or between chute and guide rail or between guide rail and guide rail, is parallel to each other; Or core measuring staff is the prism that has r side, has s bar chute or guide rail on each side, r is more than or equal to 3 natural number, and s is more than or equal to 1 natural number; Between chute and chute or between chute and guide rail or between guide rail and guide rail, be parallel to each other.
Described multi-point displacement measurement mechanism also comprises vernier connecting rod and position connecting rod, between vernier connecting rod and position connecting rod, for being rigidly connected, is hinged between vernier connecting rod and vernier.
Described multi-point displacement measurement mechanism also comprises vernier connecting rod and position connecting rod, between vernier connecting rod and position connecting rod for being rigidly connected, between vernier connecting rod and vernier for being rigidly connected.
The measuring element of described core measuring staff is magnetostrictive displacement sensor, or resistance scale, or grating scale, or magnetic railings ruler, or LVDT.
The multi-point displacement measurement mechanism that the present invention sets forth aims at the problem existing in the current multimetering of solution and designs.Core design of the present invention is " core measuring staff+n gamut vernier " design, and vernier independent measurement when work, each other without impact.Described in the present invention chute, be a kind of groove structure, vernier lower end is embedded in chute and slides.Guide rail described in the present invention, is a kind of outer male structure, and vernier lower end fastens guide rail and slides along guide rail.
Multi-point displacement measurement mechanism structure type I is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.
Multi-point displacement measurement mechanism structure type I-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute distributes at core measuring staff surface uniform, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back all equates.
Multi-point displacement measurement mechanism structure type I-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute distributes at core measuring staff surface uniform, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back all equates.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.
Multi-point displacement measurement mechanism structure type I-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute distributes at core measuring staff surface uniform, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back all equates.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type I-i-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute distributes at core measuring staff surface uniform, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back all equates.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.Each chute starting point is identical at core measuring staff axis subpoint, and each chute terminal is in the time that core measuring staff axis subpoint is identical, and each vernier useful range is identical.Each chute starting point is in core measuring staff axis subpoint difference, and each chute terminal is in the time that core measuring staff axis subpoint is different, each vernier useful range difference.
Multi-point displacement measurement mechanism structure type I-i-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute distributes at core measuring staff surface uniform, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back all equates.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.
Multi-point displacement measurement mechanism structure type I-i-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute distributes at core measuring staff surface uniform, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back all equates.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type I-i-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute distributes at core measuring staff surface uniform, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back all equates.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.Following projection is all to core measuring staff axis carries out method line projection, chute plays the identical and terminal projection of spot projection when different, only there is a kind of useful range of situation vernier identical, be that the projection of every chute terminal is positioned at core measuring staff maximal effective dose journey point place, or terminal projection is positioned at the blind area after core measuring staff maximal effective dose journey point, be also equal in length within the scope of core measuring staff useful range of each chute; Each vernier useful range difference in other situations.When chute plays spot projection difference and terminal projection difference, each vernier useful range difference.Chute plays spot projection difference and terminal projection when identical, only in the blind area before starting point is projected in core measuring staff least effective dose (LED) journey point, and when terminal is projected in core measuring staff useful range interval, each vernier useful range is identical, is also equal in length within the scope of core measuring staff useful range of each chute.
Multi-point displacement measurement mechanism structure type I-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute is in core measuring staff surface stochastic distribution, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back is identical or not identical.
Multi-point displacement measurement mechanism structure type I-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute is in core measuring staff surface stochastic distribution, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back is identical or not identical.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.
Multi-point displacement measurement mechanism structure type I-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute is in core measuring staff surface stochastic distribution, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back is identical or not identical.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type I-ii-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute is in core measuring staff surface stochastic distribution, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back is identical or not identical.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.Each chute starting point is identical at core measuring staff axis subpoint, and each chute terminal is in the time that core measuring staff axis subpoint is identical, and each vernier useful range is identical.Each chute starting point is in core measuring staff axis subpoint difference, and each chute terminal is in the time that core measuring staff axis subpoint is different, each vernier useful range difference.
Multi-point displacement measurement mechanism structure type I-ii-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute is in core measuring staff surface stochastic distribution, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back is identical or not identical.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.
Multi-point displacement measurement mechanism structure type I-ii-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute is in core measuring staff surface stochastic distribution, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back is identical or not identical.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type I-ii-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, core measuring staff band chute part be shaped as right cylinder, the direction of chute is parallel with the length direction of core measuring staff, the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number.Described chute is in core measuring staff surface stochastic distribution, and the distance between the core measuring staff arbitrary chute in surface chute adjacent with front and back is identical or not identical.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.Following projection is all to core measuring staff axis carries out method line projection, chute plays the identical and terminal projection of spot projection when different, only there is a kind of useful range of situation vernier identical, be that the projection of every chute terminal is positioned at core measuring staff maximal effective dose journey point place, or terminal projection is positioned at the blind area after core measuring staff maximal effective dose journey point, be also equal in length within the scope of core measuring staff useful range of each chute; Each vernier useful range difference in other situations.When chute plays spot projection difference and terminal projection difference, each vernier useful range difference.Chute plays spot projection difference and terminal projection when identical, only in the blind area before starting point is projected in core measuring staff least effective dose (LED) journey point, and when terminal is projected in core measuring staff useful range interval, each vernier useful range is identical, is also equal in length within the scope of core measuring staff useful range of each chute.
Multi-point displacement measurement mechanism structure type II is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.
Multi-point displacement measurement mechanism structure type II-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of regular prism.On each faceted pebble, there is minimum 0 maximum n chute.
Multi-point displacement measurement mechanism structure type II-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of regular prism.On each faceted pebble, there is minimum 0 maximum n chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.
Multi-point displacement measurement mechanism structure type II-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of regular prism.On each faceted pebble, there is minimum 0 maximum n chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type II-i-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of regular prism.On each faceted pebble, there is minimum 0 maximum n chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.Each chute starting point is identical at core measuring staff axis subpoint, and each chute terminal is in the time that core measuring staff axis subpoint is identical, and each vernier useful range is identical.Each chute starting point is in core measuring staff axis subpoint difference, and each chute terminal is in the time that core measuring staff axis subpoint is different, each vernier useful range difference.
Multi-point displacement measurement mechanism structure type II-i-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of regular prism.On each faceted pebble, there is minimum 0 maximum n chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.
Multi-point displacement measurement mechanism structure type II-i-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of regular prism.On each faceted pebble, there is minimum 0 maximum n chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type II-i-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of regular prism.On each faceted pebble, there is minimum 0 maximum n chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.Following projection is all to core measuring staff axis carries out method line projection, chute plays the identical and terminal projection of spot projection when different, only there is a kind of useful range of situation vernier identical, be that the projection of every chute terminal is positioned at core measuring staff maximal effective dose journey point place, or terminal projection is positioned at the blind area after core measuring staff maximal effective dose journey point, be also equal in length within the scope of core measuring staff useful range of each chute; Each vernier useful range difference in other situations.When chute plays spot projection difference and terminal projection difference, each vernier useful range difference.Chute plays spot projection difference and terminal projection when identical, only in the blind area before starting point is projected in core measuring staff least effective dose (LED) journey point, and when terminal is projected in core measuring staff useful range interval, each vernier useful range is identical, is also equal in length within the scope of core measuring staff useful range of each chute.
Multi-point displacement measurement mechanism structure type II-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of regular prism.On every crest line, there is minimum 0 maximum one chute.
Multi-point displacement measurement mechanism structure type II-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of regular prism.On every crest line, there is minimum 0 maximum one chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.
Multi-point displacement measurement mechanism structure type II-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of regular prism.On every crest line, there is minimum 0 maximum one chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type II-ii-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of regular prism.On every crest line, there is minimum 0 maximum one chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.Each chute starting point is identical at core measuring staff axis subpoint, and each chute terminal is in the time that core measuring staff axis subpoint is identical, and each vernier useful range is identical.Each chute starting point is in core measuring staff axis subpoint difference, and each chute terminal is in the time that core measuring staff axis subpoint is different, each vernier useful range difference.
Multi-point displacement measurement mechanism structure type II-ii-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of regular prism.On every crest line, there is minimum 0 maximum one chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.
Multi-point displacement measurement mechanism structure type II-ii-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of regular prism.On every crest line, there is minimum 0 maximum one chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type II-ii-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, the shape of core measuring staff band chute part is that cross section is the regular prism of positive r limit shape, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of regular prism.On every crest line, there is minimum 0 maximum one chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.Following projection is all to core measuring staff axis carries out method line projection, chute plays the identical and terminal projection of spot projection when different, only there is a kind of useful range of situation vernier identical, be that the projection of every chute terminal is positioned at core measuring staff maximal effective dose journey point place, or terminal projection is positioned at the blind area after core measuring staff maximal effective dose journey point, be also equal in length within the scope of core measuring staff useful range of each chute; Each vernier useful range difference in other situations.When chute plays spot projection difference and terminal projection difference, each vernier useful range difference.Chute plays spot projection difference and terminal projection when identical, only in the blind area before starting point is projected in core measuring staff least effective dose (LED) journey point, and when terminal is projected in core measuring staff useful range interval, each vernier useful range is identical, is also equal in length within the scope of core measuring staff useful range of each chute.
Multi-point displacement measurement mechanism structure type III is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.
Multi-point displacement measurement mechanism structure type III-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of prism.On each faceted pebble, there is minimum 0 maximum n chute.
Multi-point displacement measurement mechanism structure type III-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of prism.On each faceted pebble, there is minimum 0 maximum n chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.
Multi-point displacement measurement mechanism structure type III-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of prism.On each faceted pebble, there is minimum 0 maximum n chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type III-i-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of prism.On each faceted pebble, there is minimum 0 maximum n chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.Each chute starting point is identical at core measuring staff axis subpoint, and each chute terminal is in the time that core measuring staff axis subpoint is identical, and each vernier useful range is identical.Each chute starting point is in core measuring staff axis subpoint difference, and each chute terminal is in the time that core measuring staff axis subpoint is different, each vernier useful range difference.
Multi-point displacement measurement mechanism structure type III-i-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of prism.On each faceted pebble, there is minimum 0 maximum n chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.
Multi-point displacement measurement mechanism structure type III-i-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of prism.On each faceted pebble, there is minimum 0 maximum n chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type III-i-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the faceted pebble of prism.On each faceted pebble, there is minimum 0 maximum n chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.Following projection is all to core measuring staff axis carries out method line projection, chute plays the identical and terminal projection of spot projection when different, only there is a kind of useful range of situation vernier identical, be that the projection of every chute terminal is positioned at core measuring staff maximal effective dose journey point place, or terminal projection is positioned at the blind area after core measuring staff maximal effective dose journey point, be also equal in length within the scope of core measuring staff useful range of each chute; Each vernier useful range difference in other situations.When chute plays spot projection difference and terminal projection difference, each vernier useful range difference.Chute plays spot projection difference and terminal projection when identical, only in the blind area before starting point is projected in core measuring staff least effective dose (LED) journey point, and when terminal is projected in core measuring staff useful range interval, each vernier useful range is identical, is also equal in length within the scope of core measuring staff useful range of each chute.
Multi-point displacement measurement mechanism structure type III-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of prism.On every crest line, there is minimum 0 maximum one chute.
Multi-point displacement measurement mechanism structure type III-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of prism.On every crest line, there is minimum 0 maximum one chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.
Multi-point displacement measurement mechanism structure type III-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of prism.On every crest line, there is minimum 0 maximum one chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type III-ii-i-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of prism.On every crest line, there is minimum 0 maximum one chute.The identical length of described chute is same, and when each vernier moves in chute, the maximum stroke movement of vernier is identical.The length of chute is more than or equal to or is less than the useful range of core measuring staff.When the length of chute is greater than the useful range of core measuring staff, each vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, each vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, each vernier maximum stroke movement is less than the useful range of core measuring staff.Each chute starting point is identical at core measuring staff axis subpoint, and each chute terminal is in the time that core measuring staff axis subpoint is identical, and each vernier useful range is identical.Each chute starting point is in core measuring staff axis subpoint difference, and each chute terminal is in the time that core measuring staff axis subpoint is different, each vernier useful range difference.
Multi-point displacement measurement mechanism structure type III-ii-ii is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of prism.On every crest line, there is minimum 0 maximum one chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.
Multi-point displacement measurement mechanism structure type III-ii-ii-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of prism.On every crest line, there is minimum 0 maximum one chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.
Multi-point displacement measurement mechanism structure type III-ii-ii-i-i is: multi-point displacement measurement mechanism comprises a core measuring staff and n vernier.Core measuring staff surface is with linear pattern chute, and the shape of core measuring staff band chute part is the prism that has r side, and the direction of chute is parallel with the length direction of core measuring staff, and the quantity of chute is n, the every corresponding vernier of chute, and vernier moves in chute.N is more than or equal to 2 natural number, and r is more than or equal to 3 natural number.Described chute is positioned on the crest line of prism.On every crest line, there is minimum 0 maximum one chute.The length of described chute is not identical, when each vernier moves in chute, and the maximum stroke movement difference of vernier.In n bar chute, there is n 1bar is greater than the useful range of core measuring staff, has n 2bar equals the useful range of core measuring staff, has n 3bar is less than the useful range of core measuring staff.N 1, n 2, n 3be 0 or be more than or equal to 1 natural number, and n 1+ n 2+ n 3=n, and n 1, n 2, n 3in have at least one not to be 0.When the length of chute is greater than the useful range of core measuring staff, corresponding vernier maximum stroke movement is greater than the useful range of core measuring staff, the head of chute and afterbody respectively have one section to measure blind area, like this under the prerequisite of utility core measuring staff useful range, measure blind area and provide assembly space for inner, the outside mechanical structured member of core measuring staff assembling and electric, magnetics element, optics original paper.When the length of chute equals the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than or equal to the useful range of core measuring staff.When the length of chute is less than the useful range of core measuring staff, corresponding vernier maximum stroke movement is less than the useful range of core measuring staff.Following projection is all to core measuring staff axis carries out method line projection, chute plays the identical and terminal projection of spot projection when different, only there is a kind of useful range of situation vernier identical, be that the projection of every chute terminal is positioned at core measuring staff maximal effective dose journey point place, or terminal projection is positioned at the blind area after core measuring staff maximal effective dose journey point, be also equal in length within the scope of core measuring staff useful range of each chute; Each vernier useful range difference in other situations.When chute plays spot projection difference and terminal projection difference, each vernier useful range difference.Chute plays spot projection difference and terminal projection when identical, only in the blind area before starting point is projected in core measuring staff least effective dose (LED) journey point, and when terminal is projected in core measuring staff useful range interval, each vernier useful range is identical, is also equal in length within the scope of core measuring staff useful range of each chute.
When said structure type i is worked to the multi-point displacement measurement mechanism of III, total m vernier participates in measuring, and 1≤m≤n, in device, has the minimum maximum n of a vernier vernier to work simultaneously.When work, move in the chute variation of the cause aspect such as mechanical wave or stress or optics or magnetic or electricity signal of vernier is perceived by core measuring staff, core measuring staff changes these physical quantitys to transfer to after digital signal, just measure the change in displacement situation of vernier within the scope of core measuring staff useful range, reach displacement measurement effect.This installs all self-movements in the chute of own unique correspondence of each vernier, having realized concurrent working between each vernier measures alone, the maximum measurement range of vernier covers core measuring staff maximum range, the interactional situation of vernier while there will not be the work of Class1 tradition multi-point displacement measurement mechanism.The vernier range of this device can carry out rigid setting by the position of chute, length, also can be in chute length range soft setting vernier range of movement, realize the effect of interval measure within the scope of designated displacement.
Said structure type i, in the multi-point displacement measurement mechanism of III, also comprises vernier connecting rod and position connecting rod, between vernier connecting rod and position connecting rod, for being rigidly connected, is hinged between vernier connecting rod and vernier.Adding connecting rod is the technical matters in order to solve measuring point hypertelorism.In some measurement environment, measuring point is positioned at, and underground/rock stratum/concrete layer depths reaches even hundred meter levels of ten meter levels, and the variable quantity of displacement little, in this case shift in position point is directly connected infeasible with vernier, because the technical difficulty of making ten meter levels or hundred meter level hard measuring staffs is very big on the one hand, be difficult to transport, install, be difficult to change while breaking down yet, cost is high on the other hand does not possess economic feasibility yet.At this moment need to connect measuring point with position connecting rod, change in displacement is conducted out by the position connecting rod of rigidity, can cover like this multi-point displacement measurement mechanism of change in displacement with regard to only needing to manufacture range, greatly shorten the length of this device, reduce manufacture difficulty.When work, position connecting rod conducts change in displacement to rigidly connected vernier connecting rod, affects hinged vernier by vernier connecting rod, measures the displacement variation value of measuring point.Because position length of connecting rod is longer, bar footpath is larger, and itself is fixing, direct-connected and inconvenient with this device vernier, is connected and has not only been facilitated product design by vernier connecting rod, is also conducive to this device integral replacing, more easily realizes modularization.
Said structure type i is in the multi-point displacement measurement mechanism of III, and chute can be by guide rail replacement of equal value.
Multi-point displacement measurement mechanism structure type IV is: described core measuring staff smooth surface, without chute, without guide rail, described core measuring staff being shaped as in useful range length range is cylindrical or to have the prism of r side or cross section be the regular prism of positive r limit shape, and r is more than or equal to 3 natural number.When described measurement mechanism work, vernier is suspended in core measuring staff surface and moves along core measuring staff length direction.The movement locus of vernier projects to core measuring staff surface for straight line track, and between the straight path of each vernier projection without overlapping region.Described multi-point displacement measurement mechanism also comprises vernier connecting rod and position connecting rod, between vernier connecting rod and position connecting rod for being rigidly connected, between vernier connecting rod and vernier for being rigidly connected.Between vernier connecting rod and vernier, for being rigidly connected be because limit the spatiality of vernier, in the situation that not having chute or guide rail to limit vernier range of movement, reduce the disturbance of trembling, hinged words vernier self just has certain freedom of movement, can cause displacement measurement precise decreasing.
Said structure type i all adopts independent core measuring staff structural design to the multi-point displacement measurement mechanism of IV, with respect to the multi-point displacement measurement mechanism of type 2, greatly reduce the quantity of core measuring staff, simplify the structure, reduce cost of products, lower at measuring point cost of more in the situation thats, cost is n/mono-of type 2 multi-point displacement measurement mechanisms.
Brief description of the drawings
Fig. 1 is stereographic map of the present invention;
Fig. 2 is outboard profile of the present invention;
Fig. 3 is vertical view of the present invention;
Fig. 4 is vertical view of the present invention.
Embodiment
For describing technical purpose and the technique effect of technology contents of the present invention, architectural feature, realization in detail, be elaborated below in conjunction with drawings and embodiments.
Embodiment 1: described device comprises a core measuring staff 1, the core measuring element that described measuring staff adopts is magnetostrictive displacement sensor; Core measuring staff 1 main body is cylindrical, above has 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 chutes 3, has 1 vernier 2 in each chute 3; Between each chute 3, be parallel to each other and be all parallel to core measuring staff 1 axis, each chute 3 identical length are same, and each chute 3 starting points are all positioned on the same square section of core measuring staff 1, and each chute 3 terminals are all positioned on the same square section of core measuring staff 1; Chute 3 length are greater than the useful range of core measuring staff 1, and chute 3 head and the tail two ends respectively have one section of interval to measure in blind area at core measuring staff 1; Vernier 2 is free to slide in chute 3, and each vernier 2 maximum stroke movement are greater than the useful range of core measuring staff 1, and each vernier 2 useful ranges equal core measuring staff 1 useful range.
The vernier 2 of this device is all permanent magnet, and magnetostrictive waveguide silk is housed in core measuring staff 1.When device work, stimulating module in electronics storehouse applies a current impulse at the two ends of magnetostrictive waveguide silk, this pulse with the light velocity in the time forming circumferential ampere this toroidal magnetic field, loop pulse magnetic field around waveguide filament and occur to be coupled with the biasing permanent magnetic field of vernier magnet ring, can form on the surface of waveguide filament the graceful effect distorting stress of Wei De ripple, this stress wave is ultrasound wave, the about 2800m/s of intrinsic speed that torsional wave is propagated in waveguide material with it, propagate to the two ends of waveguide filament by producing point, passing the damped device of adterminal torsional wave absorbs, the signal that is transmitted to excitation end is detected device and receives, control module in electronics storehouse calculates inquiry pulse and receives the mistiming between signal, be multiplied by again its intrinsic speed, can calculate the distance between torsional wave occurrence positions and datum mark, also be that vernier magnet ring is instantaneous with respect to the absolute distance between datum mark at this, thereby realize accurately measuring in real time vernier magnet ring position.Now, the vernier 2 in each chute 3 can inspire a displacement signal, and the position data that this device has just obtained all verniers 2, has realized multi-point measurement function.This device has higher than 2000Hz super-high frequency response, the high resolving power that is greater than 0.5um, vernier and waveguide filament non-contact structure, and does not need the excellent specific properties such as absolute displacement output that return to zero.
Embodiment 2: increasing vernier connecting rod 5 and position connecting rod on embodiment 1 basis,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier 2 between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod is connected on the measuring point of underground different depth, and core measuring staff 1 body and a reference point underground or ground are rigidly connected.When measuring point is during with respect to the displacement of reference point generation vertical direction, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.Shift value not only can be according to certain sampling rate continuous wave output, can also set displacement early warning interval and change in displacement rate and report to the police.
Embodiment 3: increasing vernier connecting rod 5 and position connecting rod on embodiment 1 basis,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod connects in the one side different measuring points of crack, and core measuring staff 1 body and crack opposite side reference point are rigidly connected.In the time that measuring point occurs perpendicular to fracture orientation displacement with respect to reference point, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.
Embodiment 4: described device comprises a core measuring staff 1, the core measuring element that described measuring staff adopts is magnetostrictive displacement sensor; Core measuring staff 1 main body is the prism that has 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 sides, has 1 chute 3 on each side, has 1 vernier 2 in each chute 3; Between each chute 3, be parallel to each other and be all parallel to core measuring staff 1 axis, each chute 3 identical length are same, and each chute 3 starting points are all positioned on the same square section of core measuring staff 1, and each chute 3 terminals are all positioned on the same square section of core measuring staff 1; Chute 3 length are greater than the useful range of core measuring staff 1, and chute 3 head and the tail two ends respectively have one section of interval to measure in blind area at core measuring staff 1; Vernier 2 is free to slide in chute 3, and each vernier 2 maximum stroke movement are greater than the useful range of core measuring staff 1, and each vernier 2 useful ranges equal core measuring staff 1 useful range.
Embodiment 5: increasing vernier connecting rod 5 and position connecting rod on embodiment 4 bases,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier 2 between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod is connected on the measuring point of underground different depth, and core measuring staff 1 body and a reference point underground or ground are rigidly connected.When measuring point is during with respect to the displacement of reference point generation vertical direction, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.Shift value not only can be according to certain sampling rate continuous wave output, can also set displacement early warning interval and change in displacement rate and report to the police.
Embodiment 6: increasing vernier connecting rod 5 and position connecting rod on embodiment 4 bases,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier 2 between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod connects in the one side different measuring points of crack, and core measuring staff 1 body and crack opposite side reference point are rigidly connected.In the time that measuring point occurs perpendicular to fracture orientation displacement with respect to reference point, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.
Embodiment 7: described device comprises a core measuring staff 1, the core measuring element that described measuring staff adopts is magnetostrictive displacement sensor; Core measuring staff 1 main body is the prism that has 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 sides, has 1 chute 3 on every crest line, has 1 vernier 2 in each chute 3; Between each chute 3, be parallel to each other and be all parallel to core measuring staff 1 axis, each chute 3 identical length are same, and each chute 3 starting points are all positioned on the same square section of core measuring staff 1, and each chute 3 terminals are all positioned on the same square section of core measuring staff 1; Chute 3 length are greater than the useful range of core measuring staff 1, and chute 3 head and the tail two ends respectively have one section of interval to measure in blind area at core measuring staff 1; Vernier 2 is free to slide in chute 3, and each vernier 2 maximum stroke movement are greater than the useful range of core measuring staff 1, and each vernier 2 useful ranges equal core measuring staff 1 useful range.
Embodiment 8: increasing vernier connecting rod 5 and position connecting rod on embodiment 7 bases,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier 2 between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod is connected on the measuring point of underground different depth, and core measuring staff 1 body and a reference point underground or ground are rigidly connected.When measuring point is during with respect to the displacement of reference point generation vertical direction, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.Shift value not only can be according to certain sampling rate continuous wave output, can also set displacement early warning interval and change in displacement rate and report to the police.
Embodiment 9: increasing vernier connecting rod 5 and position connecting rod on embodiment 7 bases,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier 2 between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod connects in the one side different measuring points of crack, and core measuring staff 1 body and crack opposite side reference point are rigidly connected.In the time that measuring point occurs perpendicular to fracture orientation displacement with respect to reference point, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.
Embodiment the 1,4, the 7th, the multi-point displacement measurement mechanism body based on magnetostrictive displacement sensor, embodiment the 2,5, the 8th, the multiple spot settlement gauge based on magnetostrictive displacement sensor, embodiment the 3,6, the 9th, the multiple spot slit gauge based on magnetostrictive displacement sensor.
Device in embodiment 2,3,5,6,8,9, with respect to the same category of device based on vibrating wire sensor of current widespread use, there is the feature performance benefits such as contactless, direct measurement, high precision, temperature drift are slight, high sampling rate, moreover, because this device adopts single measuring staff design, and vibrating wire sensor cannot share core measuring staff 1 can only many instrument parallel connections, this device is also greatly better than the same category of device based on vibrating wire sensor on cost.
Embodiment 10: described device comprises a core measuring staff 1, the core measuring element that described measuring staff adopts is resistance scale; Core measuring staff 1 main body is cylindrical, above has 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 chutes 3, has 1 vernier 2 in each chute 3; Between each chute 3, be parallel to each other and be all parallel to core measuring staff 1 axis, each chute 3 identical length are same, and each chute 3 starting points are all positioned on the same square section of core measuring staff 1, and each chute 3 terminals are all positioned on the same square section of core measuring staff 1; Chute 3 length are greater than the useful range of core measuring staff 1, and chute 3 head and the tail two ends respectively have one section of interval to measure in blind area at core measuring staff 1; Vernier 2 is free to slide in chute 3, and each vernier 2 maximum stroke movement are greater than the useful range of core measuring staff 1, and each vernier 2 useful ranges equal core measuring staff 1 useful range.
The core measuring principle of resistance scale is slide rheostat, the displacement difference of energising vernier 2 processes, and resistance difference on path, the electric current measuring is also different, calculates change in displacement by curent change, is a kind of absolute displacement measuring apparatus.Chute 3 is most important parts in sensor, adopts conductive material to cover on chute base material, and chute 3 has good antiwear characteristic.Vernier 2 is a brush in fact, adopts multiconductor structural design for promoting precision, long service life, and staring torque is low, can working at high speed.This device is in order to realize multimetering, when work, adopt timeslice to distribute high speed polling mode, will the sampling time be divided into timeslice, a conducting one road vernier 2 in each timeslice, obtain successively the displacement readings of each vernier 2, so once the positional information of all verniers 2 has just been obtained in sampling.And, can also specify vernier 2 to obtain displacement information by connection, obtain all vernier 2 positional informations and needn't sample at every turn, shorten the sampling time, improve sampling rate, reduce resistance scale device loss.
Embodiment 11: increasing vernier connecting rod 5 and position connecting rod on embodiment 10 bases,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier 2 between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod is connected on the measuring point of underground different depth, and core measuring staff 1 body and a reference point underground or ground are rigidly connected.When measuring point is during with respect to the displacement of reference point generation vertical direction, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.Shift value not only can be according to certain sampling rate continuous wave output, can also set displacement early warning interval and change in displacement rate and report to the police.
Embodiment 12: increasing vernier connecting rod 5 and position connecting rod on embodiment 10 bases,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier 2 between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod connects in the one side different measuring points of crack, and core measuring staff 1 body and crack opposite side reference point are rigidly connected.In the time that measuring point occurs perpendicular to fracture orientation displacement with respect to reference point, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.
Embodiment 13: described device comprises a core measuring staff 1, the core measuring element that described measuring staff adopts is resistance scale; Core measuring staff 1 main body is the prism that has 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 sides, has 1 chute 3 on each side, has 1 vernier 2 in each chute 3; Between each chute 3, be parallel to each other and be all parallel to core measuring staff 1 axis, each chute 3 identical length are same, and each chute 3 starting points are all positioned on the same square section of core measuring staff 1, and each chute 3 terminals are all positioned on the same square section of core measuring staff 1; Chute 3 length are greater than the useful range of core measuring staff 1, and chute 3 head and the tail two ends respectively have one section of interval to measure in blind area at core measuring staff 1; Vernier 2 is free to slide in chute 3, and each vernier 2 maximum stroke movement are greater than the useful range of core measuring staff 1, and each vernier 2 useful ranges equal core measuring staff 1 useful range.
The core measuring principle of resistance scale is slide rheostat, the displacement difference of energising vernier 2 processes, and resistance difference on path, the electric current measuring is also different, calculates change in displacement by curent change, is a kind of absolute displacement measuring apparatus.Chute 3 is most important parts in sensor, adopts conductive material to cover on chute base material, and chute 3 has good antiwear characteristic.Vernier 2 is a brush in fact, adopts multiconductor structural design for promoting precision, long service life, and staring torque is low, can working at high speed.This device is in order to realize multimetering, when work, adopt timeslice to distribute high speed polling mode, will the sampling time be divided into timeslice, a conducting one road vernier 2 in each timeslice, obtain successively the displacement readings of each vernier 2, so once the positional information of all verniers 2 has just been obtained in sampling.And, can also specify vernier 2 to obtain displacement information by connection, obtain all vernier 2 positional informations and needn't sample at every turn, shorten the sampling time, improve sampling rate, reduce resistance scale device loss.
Embodiment 14: increasing vernier connecting rod 5 and position connecting rod on embodiment 13 bases,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier 2 between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod is connected on the measuring point of underground different depth, and core measuring staff 1 body and a reference point underground or ground are rigidly connected.When measuring point is during with respect to the displacement of reference point generation vertical direction, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.Shift value not only can be according to certain sampling rate continuous wave output, can also set displacement early warning interval and change in displacement rate and report to the police.
Embodiment 15: increasing vernier connecting rod 5 and position connecting rod on embodiment 13 bases,, for being rigidly connected, is hinged between vernier connecting rod 5 and vernier between vernier connecting rod 5 and position connecting rod.The corresponding vernier connecting rod 5 of each vernier 2, the corresponding position connecting rod of each vernier connecting rod 5.Each position connecting rod connects in the one side different measuring points of crack, and core measuring staff 1 body and crack opposite side reference point are rigidly connected.In the time that measuring point occurs perpendicular to fracture orientation displacement with respect to reference point, change in displacement is conducted to vernier connecting rod 5 by position connecting rod, and change in displacement is conducted to vernier 2 by vernier connecting rod 5, and core measuring staff 1 is measured the shift value making new advances.
The multi-point displacement measurement mechanism based on resistance scale of embodiment 10 to 15, the great advantage of this device is cheap, in to the not high industrial environment of accuracy requirement, can be used widely.
Embodiment 16: described device comprises a core measuring staff 1, the core measuring element that described measuring staff adopts is magnetostrictive displacement sensor; Core measuring staff 1 main body is right cylinder or the prism that has 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 sides, and described core measuring staff 1 smooth surface, without chute, without guide rail; Device also comprises 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 verniers 2, the corresponding vernier connecting rod 5 of each vernier 2, and vernier 2 is permanent magnet.When described measurement mechanism work, vernier 2 moves along core measuring staff 1 length direction in core measuring staff 1 surface at the support low suspension of vernier connecting rod 5.It is straight line track that the movement locus of vernier 2 projects to core measuring staff 1 surface, and between the straight path of each vernier 2 projections without overlapping region.Between vernier connecting rod 5 and vernier 2 for being rigidly connected.
Embodiment 17: described device comprises a core measuring staff 1, the core measuring element that described measuring staff adopts is grating scale; Core measuring staff 1 main body is cylindrical, above has 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 chutes 3, has 1 vernier 2 in each chute 3; Between each chute 3, be parallel to each other and be all parallel to core measuring staff 1 axis, each chute 3 identical length are same, and each chute 3 starting points are all positioned on the same square section of core measuring staff 1, and each chute 3 terminals are all positioned on the same square section of core measuring staff 1; Chute 3 length are greater than the useful range of core measuring staff 1, and chute 3 head and the tail two ends respectively have one section of interval to measure in blind area at core measuring staff 1; Vernier 2 is free to slide in chute 3, and each vernier 2 maximum stroke movement are greater than the useful range of core measuring staff 1, and each vernier 2 useful ranges equal core measuring staff 1 useful range.On core measuring staff 1, be carved with grating, play the effect of scale grating; On vernier 2, be carved with grating, play indication grating effect.
The principle of work of grating is all to carry out work according to the formation principle of Moire fringe physically.In the time making strain line on indication grating become a small angle theta to place two grating scales with the strain line on scale grating, will inevitably cause the strain line on two grating scales to cross one another.Under the irradiation of light source, in zonule nearby, point of crossing because black strain line is overlapping, thereby shading-area minimum, the effect that is in the light is the most weak, the cumulative function of light makes this region occur bright band.On the contrary, apart from compare Yuan region, point of crossing, because the lap of the opaque black strain line of two grating scales becomes fewer and feweri, it is large that zone of opacity area becomes gradually, it is large to be that shading-area becomes gradually, the effect grow that makes to be in the light, only has less light to see through grating by this region, make this region occur blanking bar.These are almost vertical with grating strain line, and bright, the blanking bar of alternate appearance are exactly Moire fringe.Strictly speaking, the direction that Moire fringe is arranged is perpendicular with two sheet gration strain line folder bisector of angles.Distance in Moire fringe between two bright rays or two dark lines is called the width of Moire fringe, represents with W.W=ω?/2*?sin（θ/2）=ω?/θ。Along with the movement of grating, Moire fringe also moves up and down thereupon.So just the measurement of grating pitch is converted to the measurement to Moire fringe number.
Moire fringe has following character:
In the time irradiating grating with parallel beam, two sheet grations move past a pitch relatively, and Moire fringe moves past a striped distance.Due to diffraction of light and interference effect, be just similar to/cosine function of the Changing Pattern of Moire fringe, period of change number is synchronizeed with the pitch number of grating relative displacement.
Less in the situation that, between Moire fringe width W and grating pitch ω, two grid stroke angle theta, there is following relationship at two grating grid angles.In formula, the unit of θ is rad, and the unit of W is mm.Because inclination angle is very little, sin θ is very little, W=ω/θ, if ω=0.01mm, θ=0.01rad, above formula can obtain W=1, and grating has amplified 100 times.
This explanation, without complicated optical system and electronic system, utilizes interference of light phenomenon, just the pitch of grating can be converted to the width of the Moire fringe that amplifies 100 times.This amplification is an important feature of grating.
Because Moire fringe is jointly interfered and formed by some grating strain lines, so Moire fringe has average effect to the pitch error between the indivedual strain lines of grating, can eliminate the impact that grating pitch is inhomogeneous caused.
Relatively moving between the movement of Moire fringe and two grating scales is corresponding.The two grating scales pitch d that relatively moves, Moire fringe is Moire fringe width W of corresponding movement just, its direction is vertical with the direction that two grating scales relatively move, and the direction relatively moving when two grating scales is while changing, and the direction that Moire fringe moves also changes thereupon.
According to the characteristic of above-mentioned Moire fringe, if in the direction that we move at Moire fringe, open 4 watch window A, B, C, D, and make these 4 windows between two at a distance of 1/4 Moire fringe width, i.e. W/4.From above-mentioned discussion, in the time that two grating scales relatively move, Moire fringe moves thereupon, from 4 watch window A, B, C, D can obtain 4 leading or hysteresis successively in phase place, depend on the direction that two grating scales relatively move, 1/4 cycle was the intensity variation process that is similar to cosine function of pi/2.If adopt light activated element to detect, light activated element converts corresponding voltage signal to the intensity variation that sees through watch window, is made as L a, L b, L c, L d.According to these 4 voltage signals, can detect relatively moving of grating scale.
The detection of displacement size: because relatively moving between the movement of Moire fringe and two grating scales is corresponding, therefore by detecting the situation of change of these 4 voltage signals, just can correspondingly detect relatively moving between two grating scales.Every variation one-period, i.e. the every variation one-period of Moire fringe, shows the relatively moved distance of a pitch of two grating scales; If relatively moving less than a pitch between two grating scales, because being cosine function, therefore also can calculate according to the value of cosine the distance that it relatively moves.
For example, grid line be 50 lines right/grating scale of mm, its grating pitch is 0.02mm, if just can obtain the count pulse that resolution is 5 μ m after adopting four segmentations, this has reached very high precision in the common observing and controlling of industry.Because displacement is a vector, to detect its size, detect again its direction, therefore at least need the photosignal that two-way phase place is different.In order to eliminate common mode interference, DC component and even-order harmonic, conventionally adopt the differential amplifier being formed by low drift amplifier.The 4 road photosignals that obtained by 4 photosensitive devices are delivered to respectively 2 differential amplifier input ends, be pi/2 from its phase differential of two paths of signals of differential amplifier output, for obtain sentencing to and count pulse, need carry out shaping to this two paths of signals, first they are shaped as to the square wave that dutycycle is 1:1.Then,, by the phase place of square wave being differentiated relatively, just can obtain the moving direction of grating scale.By square-wave pulse is counted, can obtain displacement and the speed of grating scale.
Embodiment 18: on the basis of embodiment 17, core measuring staff 1 main body is changed into the prism of 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 sides, have 1 chute 3 on each side, have 1 vernier 2 in each chute 3; Other aspects are identical with embodiment 17.
Embodiment 17 to 18 is Multi point measuring apparatus based on grating principle of a kind of novelty.What tradition core measuring staff 1 adopted is groove glass chi or groove steel band tape, is a kind of planar structure.The present invention is transformed into core measuring staff 1 spatial structure of cylinder or prism, on cylinder, carve grating, a core measuring staff 1 can be measured by corresponding multiple verniers 2, broken through single measuring staff list measuring point restriction of existing grating displacement measuring system, realized single measuring staff multi-point displacement measurement function.
Embodiment 19: described device comprises a core measuring staff 1, the core measuring element that described measuring staff adopts is magnetic railings ruler; Core measuring staff 1 main body is cylindrical, above has 2 or 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 chutes 3, has 1 vernier 2 in each chute 3; Between each chute 3, be parallel to each other and be all parallel to core measuring staff 1 axis, each chute 3 identical length are same, and each chute 3 starting points are all positioned on the same square section of core measuring staff 1, and each chute 3 terminals are all positioned on the same square section of core measuring staff 1; Chute 3 length are greater than the useful range of core measuring staff 1, and chute 3 head and the tail two ends respectively have one section of interval to measure in blind area at core measuring staff 1; Vernier 2 is free to slide in chute 3, and each vernier 2 maximum stroke movement are greater than the useful range of core measuring staff 1, and each vernier 2 useful ranges equal core measuring staff 1 useful range.On core measuring staff 1, be carved with magnetic grid, the magnetic wave that the wavelength of recording by record magnetic method is λ; In vernier 2, have ten magnetic magnetic heads, picking up magnetic magnetic head is magnetic flux response type magnetic head.When work, adopt phase discriminator type or amplitude type method to picking up induced potential signal processing in magnetic winding on magnetic head, draw the displacement of vernier 2 with respect to core measuring staff 1.
Embodiment 20: on the basis of embodiment 19, core measuring staff 1 main body is changed into the prism of 3 or 4 or 5 or 6 or 7 or 8 or 9 or 10 or 11 or 12 or 13 or 14 or 15 sides, have 1 chute 3 on each side, have 1 vernier 2 in each chute 3; Other aspects are identical with embodiment 17.
Embodiment 19 to 20 is Multi point measuring apparatus based on magnetic grid principle of a kind of novelty.What tradition core measuring staff 1 adopted is a kind of planar structure.The present invention is transformed into core measuring staff 1 spatial structure of cylinder or prism, on cylinder with record head recording out the strict equal magnetic wave in interval, a core measuring staff 1 can be measured by corresponding multiple verniers 2, realize magnetic grid multimetering.
Chute in embodiment 1 to 20, can replace with guide rail on an equal basis.
The above; it is only preferred embodiment of the present invention; it is not limiting the scope of the present invention; as long as adopting technical scheme of the present invention; or be only any conventional amendment or the equivalent variations that can make by those of ordinary skill in the art, all fall among the present invention's scope required for protection.

Claims (7)

1. a multi-point displacement measurement mechanism, it is characterized in that: this device comprises a core measuring staff (1) and n vernier (2), wherein n is more than or equal to 2 natural number, when this measurement mechanism work, each vernier (2) movement locus is parallel with the length direction of core measuring staff (1), each vernier (2) self-movement, and each vernier (2) maximum stroke movement is more than or equal to the useful range of core measuring staff (1), the corresponding location measurement point independently of each vernier (2), vernier (2) number that participates in measuring is natural number m, and 1≤m≤n.
2. multi-point displacement measurement mechanism as claimed in claim 1, it is characterized in that: there are chute (3) or guide rail (4) in described core measuring staff (1) surface, described chute is linear pattern, described guide rail is linear pattern, and the rectilinear direction of chute (3), guide rail (4) is parallel with the length direction of core measuring staff (1), when described measurement mechanism work, vernier (2) is along chute (3) or guide rail (4) motion.
3. multi-point displacement measurement mechanism as claimed in claim 1, is characterized in that: described core measuring staff (1) smooth surface, without chute, without guide rail, when described measurement mechanism work, vernier (2) is suspended in core measuring staff (1) surface.
4. multi-point displacement measurement mechanism as claimed in claim 2, is characterized in that: it is cylindrical that described core measuring staff (1) has the part of chute or guide rail, between chute and chute or between chute and guide rail or between guide rail and guide rail, is parallel to each other; Or core measuring staff (1), for there being the prism of r side, has s bar chute or guide rail on each side, r is more than or equal to 3 natural number, and s is more than or equal to 1 natural number; Between chute and chute or between chute and guide rail or between guide rail and guide rail, be parallel to each other.
5. the multi-point displacement measurement mechanism as described in claim 2 or 4, it is characterized in that: described multi-point displacement measurement mechanism also comprises vernier connecting rod (5) and position connecting rod (6), between vernier connecting rod (5) and position connecting rod (6), for being rigidly connected, between vernier connecting rod (5) and vernier (2), be hinged.
6. multi-point displacement measurement mechanism as claimed in claim 3, it is characterized in that: described multi-point displacement measurement mechanism also comprises vernier connecting rod (5) and position connecting rod (6), between vernier connecting rod (5) and position connecting rod (6) for being rigidly connected, between vernier connecting rod (5) and vernier (2) for being rigidly connected.
7. multi-point displacement measurement mechanism as claimed in claim 6, is characterized in that: the measuring element of described core measuring staff (1) is magnetostrictive displacement sensor, or resistance scale, or grating scale, or magnetic railings ruler, or LVDT.
CN201420391206.7U 2014-07-16 2014-07-16 A kind of multi-point displacement measurement mechanism Expired - Fee Related CN203949650U (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089597A (en) * 2014-07-16 2014-10-08 龚大成 Multipoint displacement measurement device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104089597A (en) * 2014-07-16 2014-10-08 龚大成 Multipoint displacement measurement device

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