CN107941181A - Cut down the method and apparatus that the depression between chain thing protrusion produces measurement interference - Google Patents
Cut down the method and apparatus that the depression between chain thing protrusion produces measurement interference Download PDFInfo
- Publication number
- CN107941181A CN107941181A CN201711141933.2A CN201711141933A CN107941181A CN 107941181 A CN107941181 A CN 107941181A CN 201711141933 A CN201711141933 A CN 201711141933A CN 107941181 A CN107941181 A CN 107941181A
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- Prior art keywords
- measurement
- bowl
- chain
- chain thing
- wheel
- Prior art date
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/02—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring length, width, or thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/10—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring diameters
Abstract
The invention discloses the method and apparatus that a kind of depression for being used to cut down between chain thing protrusion produces measurement interference, this method solves the adverse effect that the depression between chain thing protrusion is brought to dimensional measurement to be inscribed using the external arc for measuring chain thing of the bowl Inner arc with being paperwrapped in measurement wheel groove.It is best with measuring the straight line intersection perpendicular to measurement wheel axis made of bowl inner contact effect when some when measuring the axis of place circular cone, the axis of measurement wheel and the chain beyond the region of objective existence circular arc of bowl.Include using the device of this method：Measurement wheel, measures bowl, shell and range unit etc.；When the size of the chain thing by inner contact changes, measurement wheel can be caused to change with measuring the distance between bowl, and then drive range unit measurement chain thing size.This method can be used for measuring：The width of nylon zipper, the diameter of rope, the width of chain, the diameter of a beading, the diameter of spring, the diameter etc. of electric furnace heating wire.
Description
Technical field
The invention belongs to the depression between measuring device technical field, more particularly to abatement chain thing protrusion to produce measurement
The method and apparatus of interference.
Background technology
At present in nylon zipper production industry, entirely using the width of manual detection mode detection nylon zipper, survey
0.01 millimeter of accuracy of measurement requirement.
The method of the first artificial detection nylon zipper is：Detected after nylon zipper split.First by split
Nylon zipper separates, using the width of multiple points on card table (i.e. feeler, is also calibrator) measurement nylon zipper, during measurement
Ensure card table measurement plane perpendicular to chain tooth direction, the width value of the multiple points then obtained using measurement is averaged, will
This average value can be regarded as the width of this section of nylon zipper, finally by nylon zipper again split.
The method of second of artificial detection nylon zipper is：Detected before nylon zipper split.This detection method requirement
Worker has quite high skill, is difficult standard since the detection method is measured in the moving process of nylon zipper
The width of nylon zipper is really measured, it is careless slightly to cause equipment fault, influence product quality.
Inventor in the implementation of the present invention, it is found that at least there are following defect for the prior art：First, artificial detection
The mode of nylon zipper width, it is not only cumbersome, time-consuming, and also the accuracy measured depends entirely on the experience of operator.Secondly,
Since the tooth head of nylon zipper is not fully perpendicular to the median plane of nylon zipper, when nylon zipper stabilization is among card table
Gradient certain Shi Huiyou, if nylon zipper ajusted, and can cause nylon zipper to put shakiness, increase nylon drawing again
The measurement difficulty of chain width.More seriously the mode of above-mentioned artificial detection nylon zipper width is wide when finding there are hysteresis quality
Degree not pair when may produce a large amount of substandard products.
Therefore, accurate detection in real time is carried out to nylon zipper width there is an urgent need to a kind of on-line measurement device.
The nylon zipper width on-line measuring device of the prior art, is all reequiped based on Ka Biao or card table principle,
Feature is as follows：On the one hand, due to the use of sliding friction mode, thus resistance ratios it is larger, it is necessary to plus larger counterweight could be normal
Work；On the other hand, card table serious wear, although card table detection mouth is made of wear-resistant material, still cannot stand nylon zipper
The long-term abrasion of tooth head, precision decline rapidly.
The content of the invention
To solve the above problems, the present invention provides the side that the depression between abatement chain thing protrusion produces measurement interference
Method and device, method are：Measurement bowl Inner arc and the external arc of chain thing are inscribed.
Principle illustrates：
Adverse effect is shown as：Have depression between chain thing protrusion, when chain thing by when, roller can fall into chain repeatedly
Depression between thing protrusion and protrusion is climbed up, lead to not accurately measure.
The adverse effect that depression between abatement chain thing protrusion is brought to width measure, such as shown in (Fig. 4)：The present invention
The method that the external arc of the chain thing in Inner arc and annular recess by measuring bowl is inscribed essentially eliminates this unfavorable shadow
Ring.When measuring bowl Inner arc and chain beyond the region of objective existence circular arc is inscribed, two sections of circular arcs are infinitely similar in junction, the interference for the generation that is recessed
Level off to zero.
Realize " interference that depression produces level off to zero " most simple most efficient method such as shown in (Fig. 9)：When measurement bowl
The axis of place circular cone, the axis of measurement wheel and chain beyond the region of objective existence circular arc with measurement bowl inner contact made perpendicular to measurement wheel
The straight line intersection of axis comes the position between positioning measurement wheel, measurement bowl and chain thing three and size in any with this.
The key structure and the course of work for realizing the device of this method include：
Measurement wheel, is arranged to fix or is configured to surround its axis rotation, along the circumference side of the measurement wheel side wall
To being provided with for accommodating and stablizing the annular recess of chain thing；
Bowl is measured, is arranged to fix or is configured to surround its axis rotation, is covered in the measurement wheel and the survey
The Inner arc and the external arc of the chain thing in the annular recess of the measurement wheel for measuring bowl are inscribed；
Guider, for the limited block of the directive wheel with annular recess, limited block with groove or other forms, is located at
The measurement wheel both sides, the chain thing is guided in the annular recess of the measurement wheel and wrapping certain angle；
Range unit, for measuring the size of chain thing；
Chain thing size includes width, diameter, thickness of chain thing etc..
Using wrapping angle of the guider control chain thing in measurement wheel, when the chain thing of measured bowl inner contact
Width when changing, the distance between measurement wheel and measurement bowl can be caused also to change therewith, make the survey being attached thereto
Change away from device, the change of the chain thing size can be calculated accordingly.
Further, when annular recess is used to measure the size of chain thing, using the one-dimensional rock-steady structure or V-arrangement of rectangular base
The two-dimentional rock-steady structure at bottom.
Further, the center institute of two guider grooves of measurement wheel will be closed in the one-dimensional rock-steady structure of rectangular base
The plane where the center of plane and measurement wheel groove staggers certain distance, chain thing is close on one side, exists to avoid chain thing
Measurement result caused by being swung in annular recess is unstable.
Further, the angle of two conical surfaces of the two-dimentional rock-steady structure of V-Bottom is 90 degree.
Further, guider can be a kind of wheel with annular recess, i.e.,：Directive wheel.
Further, guider can also be a kind of with reeded slideway, be fitted with and lack tension force in chain thing
When prevent its depart from lid.
Further, measurement wheel and measurement bowl can be cut in the application that need not be rotated in order to further facilitate chaining
Except a part for the circular arc not contacted with chain thing, retain the measurement bowl is less than or equal to 1/2 circular arc.
Beneficial technique effect：Depression between abatement chain thing protrusion provided by the invention produces measurement the side of interference
Method and device, the method that is inscribed with the Inner arc of measurement bowl and the external arc of chain thing being paperwrapped in measurement wheel measure chain
The size of thing, solves the adverse effect that the hollow zone between chain thing protrusion comes, solves the influence of manual measurement inaccuracy,
Not only high certainty of measurement but also resistance is small during on-line measurement.The measuring method can be widely used for measuring the size of various chain things,
Such as：The width of nylon zipper, the diameter of rope, the width of chain, the diameter of a beading, the diameter of spring, the diameter etc. of electric furnace heating wire.
Brief description of the drawings
Fig. 1 is the structure diagram for the nylon zipper that embodiment of the present invention provides；
Fig. 2 is the structure diagram for the measurement wheel that first embodiment of the invention provides；
Fig. 3 is the structure diagram of common circumscribed circle dimensional measurement；
Fig. 4 a are the structure diagrams of inscribed circle dimensional measurement of the present invention；
Fig. 4 b are the structures of one-dimensional rock-steady structure (rectangular base) dimension measuring device that first embodiment of the invention provides
Schematic diagram；
Fig. 4 c are the A-A profiles of Fig. 4 b；
Fig. 5 a, Fig. 5 b are one-dimensional rock-steady structure (rectangular base) measurement wheel and be tested that an optional embodiment of the invention provides
The unmatched schematic diagram of thing；
Fig. 5 c are that tension force 11 is converted into by two-dimentional rock-steady structure (V-Bottom) measurement wheel that second embodiment of the invention provides
The schematic diagram of two-dimentional power 12,13；
Fig. 5 d are that the structure of two-dimentional rock-steady structure (V-Bottom) dimension measuring device that second embodiment of the invention provides is shown
It is intended to；
Fig. 5 e are the A-A profiles of Fig. 5 d；
Fig. 6 is the structure diagram of one-dimensional rock-steady structure (rectangular base) the dimension measuring device embodiment of the present invention；
Fig. 6 c are master maps；
Fig. 6 a are the A-A sectional views of Fig. 6 c；
Fig. 6 d are the B-B sectional views of Fig. 6 c；
Fig. 6 b are the isometric drawings of Fig. 6 c；
Fig. 7 is the structure diagram of two-dimentional rock-steady structure (V-Bottom) dimension measuring device embodiment of the invention；
Fig. 7 c are master maps；
Fig. 7 a are the A-A sectional views of Fig. 7 c；
Fig. 7 d are the B-B sectional views of Fig. 7 c；
Fig. 7 b are the isometric drawings of Fig. 7 c；
Fig. 8 is the schematic diagram that the present invention is used for different chain thing using effects；
Fig. 8 a are the schematic diagrames for measuring bellow；
Fig. 8 b are the schematic diagrames for measuring a beading；
Fig. 8 c are the schematic diagrames for measuring electric furnace heating wire；
Fig. 8 d are the schematic diagrames for measuring rope；
Fig. 9 a are one-dimensional rock-steady structure measurement wheel and the ratio and position relationship schematic diagram of measurement bowl；
Fig. 9 b are two-dimentional rock-steady structure measurement wheel and the ratio and position relationship schematic diagram of measurement bowl；
Reference numeral：
101：Housing, 102：First directive wheel, 103：Second directive wheel, 104：Measurement wheel, 1041：Annular recess, 105：
Nylon zipper, 106：Swing arm, 107：Swing arm shaft, 108：Measure bowl, 109：Range sensor；
11：Tension force, 12:First latitude stability force, 13：Second latitude stability force；
21：The axis of the place circular cone of measurement bowl, 22：The axis of measurement wheel, 23：Chain beyond the region of objective existence circular arc is inscribed with measurement bowl
Point, 24：Chain beyond the region of objective existence circular arc with measurement bowl inner contact made perpendicular to measurement wheel axis straight line, 25：Three lines intersect at one
Point.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, in being measured in nylon zipper
Two specific embodiments and referring to the drawings, the present invention is described in more detail.It should be understood that these descriptions are simply exemplary
, and it is not intended to limit the scope of the present invention.In addition, in the following description, the description to known features and technology is eliminated, with
Avoid unnecessarily obscuring idea of the invention.
The width of nylon zipper 105 (Fig. 1) is accurately measured, first has to solve the problems, such as how to stablize nylon zipper 105,
All have the characteristics that soft, flexible, form is lack of standardization mostly in view of nylon zipper 105, be paperwrapped in recessed with ring-type
In the measurement wheel 104 (Fig. 2) of groove 1041, stablize the annular recess in measurement wheel 104 under the action of 105 tension force of nylon zipper
In 1041 (Fig. 3), with the width of contact measurement nylon zipper 105 in a roller and 105 outer rim of nylon zipper.But zipper teeth
Head have depression, when nylon zipper 105 by when, depression and climb up tooth that roller can be fallen between 105 tooth head of nylon zipper repeatedly
Head, causes accurately measure at all.The unfavorable shadow brought thoroughly to solve 105 tooth head of nylon zipper to be recessed to width measure
Ring, as shown in Figure 4：The external arc of nylon zipper 105 in Inner arc and annular recess 1041 of the present invention by measuring bowl 108
Inscribed method essentially eliminates this adverse effect.As shown in Figure 9：Axis 21, measurement when the place circular cone of measurement bowl 108
The straight line for the axis 22 perpendicular to measurement wheel that the axis 22 and chain beyond the region of objective existence circular arc of wheel are made with measurement 108 inner contact 23 of bowl
24 intersect at a point 25 when effect it is best, Error Theory value can be made to be reduced within 1 micron, realize accurate measurement Buddhist nun
The purpose of imperial 105 width of slide fastener.
As shown in Figure 6 and Figure 7, the width of measuring device that embodiment of the present invention provides includes：Housing 101, is arranged on shell
The measurement wheel 104 of the top of body 101, is arranged to fix or is configured to surround axis rotation, along the circumference of 104 side wall of measurement wheel
Direction is provided with the annular recess 1041 for accommodating nylon zipper 105；Bowl 108 is measured, is arranged to fix or is configured to
Around axis rotation, the first directive wheel 102 and the second directive wheel 103 of 104 both sides of measurement wheel are arranged on, is used to support measurement bowl
108 swing arm 106, measurement bowl 108 be arranged on 106 upper end of swing arm and cover in measurement wheel 104, measure bowl 108 Inner arc with
The external arc of nylon zipper 105 in annular recess 1041 is inscribed, and 106 lower end of swing arm passes through under swing arm shaft 107 and housing 101
Portion is hinged, and range sensor 109 is arranged at the lower section of swing arm 106；Specifically, nylon zipper 105 moves under the effect of external force, according to
Secondary to be bypassed from the first directive wheel 102,104 and second directive wheel 103 of measurement wheel, nylon zipper 105 is limited in annular recess
In 1041, nylon zipper 105 changes in measured wheel 104 with the inner contact and 105 width of nylon zipper for measuring bowl 108
When, swing arm 106 can be made to be rotated centered on swing arm shaft 107, so that the distance between swing arm 106 and range sensor 109
Change, after range sensor 109 senses the distance change, which be converted into signal intensity and is exported,
The change of 105 width of nylon zipper is finally calculated according to the change of the output signal of range sensor 109.
In order to realize the stabilization on-line measurement to nylon zipper 105, tension spring can be set between housing 101 and swing arm 106,
Apply the pulling force close to housing 101 for swing arm 106.
When the width of the nylon zipper 105 by inner contact changes, measurement wheel 104 and measurement bowl 108 can be caused
The distance between change, and then drive range sensor 109.Range sensor 109 is used for measurement wheel 104 and measurement bowl
The distance between 108 changes are converted into the change of output signal so that user can calculate nylon drawing according to the signal intensity
The change of 105 width of chain.It should be noted that the range unit used in this example is range sensor 109, range sensor
109 can use laser range sensor, can also select electromagnetic type distance measuring sensor, can also use Mechanical measurement instrument.
It is arranged to fixed：When the present invention is very high to accuracy of measurement requirement for quality inspection etc., use intensity is low-down
Occasion, measurement wheel 104 and measurement bowl 108 are arranged to not rotate and are greatly improved accuracy of measurement.
It is configured to rotate：It is used for the very high occasions of use intensity such as on-line real time monitoring when of the invention, will surveys
Amount wheel 104 and measurement bowl 108 are arranged to rotation and can greatly prolong service life.
In the present invention, measure in the Inner arc of bowl 108 and the external arc of the nylon zipper 105 in annular recess 1041
Connect, represent that the width of nylon zipper 105 is more than the depth of annular recess 1041.
One-dimensional rock-steady structure：Stablize for product, it is reliable using the one-dimensional rock-steady structure of rectangular base when thickness change is little
Property highest, it is not easy to break down.One-dimensional rock-steady structure requires groove width to be matched with nylon zipper 105, nylon zipper 105 and depression
Depression between cell wall cannot be too big, otherwise influences accuracy of measurement.Although plane where the groove center of directive wheel and measurement
Wheel 104 groove center where plane stagger certain distance can be obviously improved nylon zipper 105 and be recessed cell wall between depression
Influence to measurement, but act on limited.Measurement wheel 104 must be just replaced when thickness change is bigger.Fig. 5 a, Fig. 5 b are clearly
Illustrate the matched importance of recess width.Fig. 6 is the one-dimensional rock-steady structure (rectangle that alternative embodiment of the present invention one provides
Bottom) measurement wheel structure diagram.
Two-dimentional rock-steady structure：Often change in product, when thickness is not known, in order to avoid often replacing measurement wheel 104, just
To use the measurement wheel of the V-Bottom with two-dimentional rock-steady structure.Although reliability is not so good as the one-dimensional rock-steady structure of rectangular base, right
The thickness of nylon zipper 105 does not require, it is not necessary to make measurement wheel 104 to measure, it is very easy to use.Fig. 7 is this hair
The structure diagram of two-dimentional rock-steady structure (V-Bottom) measurement wheel that bright optional embodiment two provides.
In order to make the thickness of nylon zipper 105 not interfered to width measure, the angle of v-shaped structure is 90 degree, specifically
Ground, is exactly changed to two orthogonal conical surfaces by the bottom opposite with opening of annular recess 1041 by plane, and wrapping is measured
The centripetal pulling force 11 of wheel 104 is decomposed into width pulling force 12 and thickness direction pulling force 13, and bottom is protected by an original dimension
It is fixed to keep steady, and is changed to the dimension of bottom two and keeps stablizing.The annular recess 1041 of v-shaped structure is suitable for the larger nylon of thickness change
Slide fastener 105, need not replace measurement wheel 104 at this time.In the present invention, the thickness of nylon zipper 105 is unrestricted, it is only necessary to nylon
The width of slide fastener 105 matches with the height of annular recess 1041, is exactly that nylon zipper 105 is slightly prominent specifically
In V-shaped groove to measure, Fig. 5 e clearly illustrate how measurement wheel 104, nylon zipper 105, measurement bowl 108 coordinate.
The accuracy of angle is wrapped to ensure nylon zipper 105 in the annular recess 1041 of measurement wheel 104, is being measured
Take turns 104 both sides and be equipped with guider, such as directive wheel (production is used) or slideway (quality inspection use), guiding nylon zipper 105, which enters, to be surveyed
Amount wheel 104.Nylon zipper 105 is stablized in measurement wheel 104 under tension.Will be when 105 tension force of nylon zipper is insufficient
The outside of directive wheel or slideway increases the device for preventing chain, such as is capped.
Here, to pay special attention in the one-dimensional rock-steady structure of rectangular base for the setting position of directive wheel, will close on
Plane where the center of two directive wheel grooves of measurement wheel 104 staggers necessarily with plane where the center of 104 groove of measurement wheel
Distance, it is therefore an objective to make nylon zipper 105 be close on one side, caused by being swung to avoid nylon zipper 105 in annular recess 1041
Measurement result is unstable.
On measuring the angle of inclination of bowl 108, surveyed on the basis of ensureing that nylon zipper 105 smoothly passes in and out measurement wheel 104
Measure the smaller the better of bowl 108.It is smaller that slight drag is got at inclination angle, and abrasion is smaller.The angle that nylon zipper 105 wraps measurement wheel 104 is got over
It is big, it is necessary to inclination angle it is smaller, while chaining is also more difficult.So the setting of wrapping angle will be according to concrete application synthetic weights
Weighing apparatus.Fig. 7 is V-Bottom, Fig. 6 is rectangular base, just as in view of chaining difficulty problem so measurement wheel wrapping angle and measurement bowl
Just there occurs great changes at 108 angle of inclination.
It is contemplated that protection it is a kind of be used to cutting down depression between chain thing protrusion measurement is produced the method for interference with
Device, for the flexible nature of chain thing using annular recess to stablize it, then by the way that the Inner arc and measurement wheel of bowl will be measured
Method that the external arc of chain thing in annular recess is inscribed, to solve chain thing because the depression between protrusion is brought to measurement
Adverse effect, will make measurement wheel change with measuring the distance between bowl when the change in size of chain thing, pass through measurement
Measurement wheel changes to achieve the purpose that to measure chain thing size with measuring the distance between bowl.
It should be appreciated that the above-mentioned embodiment of the present invention is used only for exemplary illustration or explains the present invention's
Principle, without being construed as limiting the invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent substitution, improvement etc., should all be included in the protection scope of the present invention.In addition, appended claims purport of the present invention
Covering the whole changes fallen into scope and border or this scope and the equivalents on border and repairing
Change example.
Claims (8)
1. a kind of method that depression for being used to cut down between chain thing protrusion produces measurement interference, it is characterised in that measurement bowl
Inner arc is inscribed with being placed in the external arc of chain thing in the annular recess of measurement bowl, when measurement bowl Inner arc and chain beyond the region of objective existence circular arc
When inscribed, two sections of circular arcs are infinitely similar in junction, between the interference that produces of depression level off to zero.
2. according to the method described in claim 1, it is characterized in that, axis, the axis of measurement wheel of the place circular cone when measurement bowl
The straight line intersection perpendicular to measurement wheel axis that line and chain beyond the region of objective existence circular arc and measurement bowl inner contact are made is come in any with this
Position and size between positioning measurement wheel, measurement bowl and chain thing three.
3. a kind of depression for being used to cut down between chain thing protrusion produces measurement in the device of interference, it is characterised in that including：
Measurement wheel, is arranged to fix or is configured to surround its axis rotation, set along the circumferencial direction of the measurement wheel side wall
It is equipped with for accommodating and stablizing the annular recess of chain thing；Annular groove has two kinds of shapes, is respectively the one-dimensional stabilization of rectangular base
Structure or the two-dimentional rock-steady structure using V-Bottom；
Bowl is measured, is arranged to fix or is configured to surround its axis rotation, is covered in the measurement wheel and the measurement bowl
Inner arc and the external arc of the chain thing in the annular recess of the measurement wheel be inscribed；
Guider, is equipped with guider in the measurement wheel both sides, the chain thing is guided to the ring-type of the measurement wheel
Groove is interior and wraps certain angle；
Range unit, for measuring the size of chain thing；
Using wrapping angle of the guider control chain thing in measurement wheel, when the width of the chain thing of measured bowl inner contact
When degree changes, measurement wheel can be caused also to change therewith with measuring the distance between bowl, the ranging for making to be attached thereto fills
Put and change, the change of the chain thing size can be calculated accordingly.
4. device according to claim 3, it is characterised in that the annular recess is used for the size for measuring the chain thing
When, using the one-dimensional rock-steady structure of rectangular base or the two-dimentional rock-steady structure of use V-Bottom.
5. according to claim 3-4 any one of them devices, it is characterised in that will in the one-dimensional rock-steady structure of the rectangular base
Plane where closing on the center of two guider grooves of measurement wheel staggers necessarily with plane where the center of measurement wheel groove
Distance, makes chain thing be close on one side, measurement result caused by being swung to avoid chain thing in the annular recess is unstable.
6. according to claim 3-4 any one of them devices, it is characterised in that the two of the two-dimentional rock-steady structure of the V-Bottom
The angle of a conical surface is 90 degree.
7. device according to claim 3, it is characterised in that when the guider is used for on-line continuous measurement, use
The limited block of directive wheel with annular recess, limited block with groove or other forms is as guider, on guider
Installation prevents the lid of chain thing disengaging or does not install the lid for preventing that chain thing from departing from.
8. device according to claim 3, it is characterised in that the measurement bowl retains in the application that need not be rotated
The measurement bowl is less than or equal to 1/2 circular arc.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710398254 | 2017-05-31 | ||
| CN2017103982547 | 2017-05-31 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107941181A true CN107941181A (en) | 2018-04-20 |
| CN107941181B CN107941181B (en) | 2020-09-15 |
Family
ID=61931598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711141933.2A Active CN107941181B (en) | 2017-05-31 | 2017-11-17 | Method and device for reducing interference of recesses between chain-like object bulges on measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107941181B (en) |
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| CN107941181B (en) | 2020-09-15 |
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