CN206514843U - The spirit level of function is measured with instrument high precision - Google Patents
The spirit level of function is measured with instrument high precision Download PDFInfo
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- CN206514843U CN206514843U CN201720238725.3U CN201720238725U CN206514843U CN 206514843 U CN206514843 U CN 206514843U CN 201720238725 U CN201720238725 U CN 201720238725U CN 206514843 U CN206514843 U CN 206514843U
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- expansion link
- spirit level
- high precision
- instrument high
- instrument
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Abstract
How accurately technical problem to be solved in the utility model is surveyor's level instrument height.The spirit level of function, including spirit level, expansion link and optical micrometer are measured with instrument high precision, expansion link is vertically mounted under the pedestal of spirit level, and expansion link is hollow structure, and optical micrometer is arranged on the outside of expansion link, there is scale expansion link lower end, and expansion link lower end is substrate and appropriate counterweight.The utility model has the advantages that：The elevation of spirit level is known, reduces the measurement of higher degree step on the datum mark, and measurement efficiency is double；After spirit level essence is flat, expansion link and two plane exact verticals of pedestal and the earth, secondly expansion link stretch out all the time with ground reference point close contact, and the measurement accuracy of optical micrometer is very high, the common guarantee precision of institute's survey instrument elevation.
Description
Technical field
The utility model is related to the measurement of field of measuring technique, especially spirit level instrument height.
Background technology
Spirit level is to set up the instrument that horizontal line of sight determines the ground point-to-point transmission discrepancy in elevation.Principle is to be surveyed according to measurement of the level principle
Measure the discrepancy in elevation between ground point.Critical piece has telescope, pipe spirit level（Or compensator）, vertical axis, pedestal, foot screw.By structure
It is divided into tilting level, automatic compensated level, laser level and electronic level.It is divided into precision level and general by precision
Logical spirit level.
Determine the measurement work of ground point elevation, the referred to as measurement of higher degree.The measurement of higher degree be again three groundworks of measurement it
One.According to the difference using instrument and Metrical Method, the measurement of higher degree can be divided into the measurement of the level, trigonometric levelling and air pressure elevation
Measurement.Elevation is measured with spirit level, the referred to as measurement of the level, it is the most frequently used, most accurate method in the measurement of higher degree.
The general principle of the measurement of the level provides " horizontal line of sight " using spirit level, measures the point-to-point transmission discrepancy in elevation, so that by
Known point height extrapolates unknown point height.
At present, generally elevation is measured with high differentiation.If the elevation of known A points, the elevation of B points to be determined, then exist
、Two rulers of setting on 2 points, and、A frame is disposed to obtain the instrument of horizontal line of sight between 2 points.Assuming that level
Position readings of the horizontal line of sight of instrument on ruler are respectivelyChi（Backsight）Reading is,Chi（Forward sight）Reading is, then、Depth displacement between 2 points（The abbreviation discrepancy in elevation）For
（1）
ThenThe elevation of pointFor
（2）
（3）
The continuous measurement of the level.In the actual measurement of the level, A, B point-to-point transmission discrepancy in elevation are larger or apart from each other, dispose a water
Quasi- instrument can not determine the discrepancy in elevation between 2 points.Now it is necessary to set up several necessary temporarily vertical chis along A, B leveling line
Point, i.e. turning point（As elevation transference）.Spirit level is continuously disposed in the middle of two vertical chis according to the principle of the measurement of the level successively
To determine the discrepancy in elevation between adjacent spots, summation obtains the high difference of A, B point-to-point transmission.
In the high differentiation that measurement elevation is used at present, because spirit level instrument height is unknown, 2 points of height is measured every time
Path difference must all set up spirit level between two points to measure 2 points of staff reading, and such measurement efficiency is restricted.
The content of the invention
How accurately technical problem to be solved in the utility model is surveyor's level instrument height.
The spirit level of function, including spirit level, expansion link and optical micrometer are measured with instrument high precision, expansion link hangs down
Straight expansion link is hollow structure under the pedestal of spirit level, and optical micrometer is arranged on the outside of expansion link, expansion link lower end
There is scale, expansion link lower end is substrate and appropriate counterweight.Preferably, spirit level is optical level, and expansion link is by two sections of quarter butts
Concatenation is formed, and the scale of expansion link lower end matches with the scale of levelling rod.Preferably, the cross section of expansion link is positive triangle
Shape.Preferably, clear glass base is installed between optical micrometer and expansion link.Preferably, substrate is fixedly mounted on flexible
Bar lower end.Preferably, substrate is cylinder.Preferably, substrate is detachable.Preferably, screens spiral shell is installed on expansion link
Silk.Preferably, the cross section of expansion link epimere quarter butt is more than hypomere quarter butt, and optical micrometer is arranged on epimere quarter butt.This reality
With new as a result of above technical scheme, have the advantages that：The elevation of spirit level is known, reduces the base
Measurement of higher degree step on schedule, measurement efficiency is double；After spirit level essence is flat, expansion link strictly hangs down with pedestal and two planes of the earth
Directly, next expansion link is stretched out all the time is in close contact with ground reference point, and the measurement accuracy of optical micrometer is very high, common guarantee
The precision of institute's survey instrument elevation.
Brief description of the drawings
Fig. 1 is the spirit level overall structure diagram with instrument high precision measurement function；
Fig. 2 is spirit level and expansion link coupling part structural representation；
Fig. 3 is expansion link bottom part partial enlargement structural representation；
Fig. 4 is expansion link and optical micrometer part-structure schematic diagram；
Fig. 5 is current measurement of higher degree high differentiation principle schematic；
Fig. 6 is measurement of higher degree high differentiation principle schematic of the present utility model；
In figure：1. spirit level, 2. expansion links, 3. optical micrometers, 4. pedestals, 5. cylindrical bases, 6. screens screws, 7.
Clear glass base, 8. scales.
Embodiment
Embodiment 1, as shown in accompanying drawing 1-4.
The spirit level of function, including spirit level, expansion link and optical micrometer are measured with instrument high precision, expansion link hangs down
Straight expansion link is hollow structure under the pedestal of spirit level, and optical micrometer is arranged on the outside of expansion link, expansion link lower end
There is scale, expansion link lower end is substrate and appropriate counterweight.
The appropriate counterweight in expansion link lower end, or longitudinal spring is added in expansion link, it ensure that expansion link bottom and ground
The face datum mark moment keeps contact, reduces measurement error.The present apparatus also can be used for miscellaneous equipment or position height measurement and
Monitoring in real time.Preferably, spirit level is optical level, and expansion link is formed by two sections of quarter butt concatenations, the scale of expansion link lower end
Match with the scale of levelling rod.The reasons why only two sections quarter butts are concatenated is that first, two sections of concatenations can highly adjust expansion link
To below 80mm, typically use enough, secondly, multistage concatenation is more difficult to ensure the perpendicularity of its junction, can bring bigger survey
Measure error.It is in order that obtaining measuring scale can support the use with levelling rod that the scale of measuring scale matches with the scale of levelling rod.
Preferably, the cross section of expansion link is equilateral triangle.The reasons why expansion link cross section is equilateral triangle is, in materials and consumption phase
With in the case of, triangle is more circular etc., and polygonized structure is more stable, is not likely to produce Bending Deformation.Preferably, optical micrometer with
Clear glass base is installed between expansion link.This is, in order to increase the light needed for reading, light filling can also to be installed in base
Lamp, light compensating lamp hand switch or adds optical switch according to light intensity automatic switch.Because object distance is constant, optics is surveyed
Micro- device can be fixedly mounted by its focal length, make the scale on the quarter butt of expansion link lower end as being in clearly on eyepiece graticule.Optics
Mircrometer gauge is made up of parts such as parallel plate, mircrometer gauge calibrated dial, drive link and micrometer screws.Parallel plate drive link with
Micrometer is connected.There are 100 lattices on micrometer, it is corresponding with 10mm, i.e., be 0.1mm per lattice, reading can be estimated
To 0.01mm.Every 10 lattice have longer division line and annotation numeral, and the lattice value between every two long division line is 1mm.Work as parallel plate
When orthogonal with horizontal line of sight, initial reading is 5mm on micrometer.When rotating micrometer screw, drive link just drives parallel glass
Glass plate is bent forward and backward relative to object lens, and it is corresponding mobile to drive micrometer to make simultaneously.Parallel plate is relative to thing
Mirror is bent forward and backward, and horizontal line of sight will be moved in parallel up or down.If reversing micrometer screw, make to bow before parallel plate
Moved to micrometer at 10mm, then horizontal line of sight translates downwards 5mm, conversely, clockwise micrometer screw makes after parallel plate
Face upward micrometer to move at 0mm, then horizontal line of sight translates up 5mm.Micrometer number reading method is with precision optics spirit level：Rotation
Turn micrometer knob, plate glass can be tilted, so as to cause sight to move up and down, make graduation plate level horizontal hair and expansion link lower end
Scale on nearest centimetre lattice value overlap, then read from magnifier for reading scale reading and micrometer reading（Centimetre value is straight
Connect and read from mircrometer gauge, millimeter value is read from the micrometer of mircrometer gauge）, both produce institute's measured value at addition.Preferably, substrate
It is fixedly mounted on expansion link lower end.Preferably, substrate is cylinder.In order to reduce influence of the glass refraction to laser alignment, base
Base thickness degree can not be excessive, with the appropriate to the occasion glass material that selection refractive index is small and intensity is high.Preferably, substrate is detachable.It is excellent
Screens screw is installed on selection of land, expansion link.Screens screw is used to shrink fixation, is easy to place after being finished.Preferably, expansion link
The cross section of epimere quarter butt is more than hypomere quarter butt, and optical micrometer is arranged on epimere quarter butt.The spirit level application method：A. frame
If spirit level, expansion link is stretched out, its bottom is touched terrestrial reference；B. it is thick flat；C. it is rough aim at, focusing, fine sight；d.
Essence is flat；E. reading；F. instrument height is measured, the reading that record optical micrometer is shown, computing equipment is high；G. measurement of higher degree principle with
Step, it is known that the elevation of A points, the elevation of B points to be determined, then existLevelling rod is erect on point,One is disposed between point
Frame can obtain the spirit level of horizontal line of sight, it is assumed that position readings of the horizontal line of sight of spirit level on ruler are respectivelyChi is read
Number is, spirit level instrument is a height ofH,ThenThe elevation of pointFor
Telescope measurement is rotated afterwardsCChi readingc, then withBPoint orAPoint is known point, then is calculated with high differentiationCPoint
Elevation, disposes spirit level in D points again after having surveyed, circulates measurement with this and go down.
Measurement of higher degree principle of the present utility model and step is explained in detail below.
High differentiation, i.e., the method that tested point elevation is calculated using the discrepancy in elevation.Here, entering with the current high differentiation generally used
Row comparative illustration.
Current high differentiation principle as shown in figure 5, its measuring process with computational methods as stated in the Background Art.
High differentiation principle of the present utility model is as shown in fig. 6, due to spirit level instrument height of the present utility modelhIt is known
, equivalent in current high differentiationChi reading, i.e., without measurementChi（Forward sight）Reading, then、Height between 2 points
Path difference（The abbreviation discrepancy in elevation）For
（4）
ThenThe elevation of pointFor
（5）
ThenThe elevation of pointFor
（6）
Measuring process current and of the present utility model contrast is understood that the utility model is in measurementThe elevation of point,
Spirit level is only measuredChi（Backsight）Reading, when rotation collimation telescopeCPoint onCRuler, you can measurementCChi（Forward sight）Read
Numberc, then withBPoint orAPoint is known point, then is calculated with high differentiationCThe elevation of point.So, eliminateBThe measurement of point height,
Measurement efficiency is double.
Claims (9)
1. the spirit level of function is measured with instrument high precision, it is characterized in that including spirit level, expansion link and optical micrometer are stretched
Contracting bar is vertically mounted under the pedestal of spirit level, and expansion link is hollow structure, and optical micrometer is arranged on the outside of expansion link, is stretched
There is scale bar lower end, and expansion link lower end is substrate and appropriate counterweight.
2. the spirit level with instrument high precision measurement function according to claim 1, it is characterized in that spirit level is light
Spirit level is learned, expansion link is formed by two sections of quarter butt concatenations, and the scale of expansion link lower end matches with the scale of levelling rod.
3. the spirit level with instrument high precision measurement function according to claim 1 or 2, it is characterized in that expansion link
Cross section is equilateral triangle.
4. the spirit level with instrument high precision measurement function according to claim 1 or 2, it is characterized in that optics micrometer
Clear glass base is installed between device and expansion link.
5. according to claim 1 there is instrument high precision to measure the spirit level of function, pacify it is characterized in that substrate is fixed
Mounted in expansion link lower end.
6. the spirit level with instrument high precision measurement function according to claim 5, it is characterized in that substrate is cylinder
Shape.
7. the spirit level with instrument high precision measurement function according to claim 5 or 6, it is characterized in that substrate is removable
Unload replacing.
8. the instrument high precision that has according to claim 1 measures the spirit level of function, it is characterized in that pacifying on expansion link
Equipped with screens screw.
9. the spirit level with instrument high precision measurement function according to claim 2, it is characterized in that expansion link epimere
The cross section of quarter butt is more than hypomere quarter butt, and optical micrometer is arranged on epimere quarter butt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720238725.3U CN206514843U (en) | 2017-03-13 | 2017-03-13 | The spirit level of function is measured with instrument high precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720238725.3U CN206514843U (en) | 2017-03-13 | 2017-03-13 | The spirit level of function is measured with instrument high precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206514843U true CN206514843U (en) | 2017-09-22 |
Family
ID=59870354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720238725.3U Expired - Fee Related CN206514843U (en) | 2017-03-13 | 2017-03-13 | The spirit level of function is measured with instrument high precision |
Country Status (1)
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| CN (1) | CN206514843U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072357A (en) * | 2017-03-13 | 2018-05-25 | 湖南科技大学 | There is the spirit level and its application method of the measurement of instrument high precision |
-
2017
- 2017-03-13 CN CN201720238725.3U patent/CN206514843U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108072357A (en) * | 2017-03-13 | 2018-05-25 | 湖南科技大学 | There is the spirit level and its application method of the measurement of instrument high precision |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 Termination date: 20200313 |
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| CF01 | Termination of patent right due to non-payment of annual fee |