CN206514803U - A kind of high-precision measuring rule of internal-and external diameter - Google Patents
A kind of high-precision measuring rule of internal-and external diameter Download PDFInfo
- Publication number
- CN206514803U CN206514803U CN201720238749.9U CN201720238749U CN206514803U CN 206514803 U CN206514803 U CN 206514803U CN 201720238749 U CN201720238749 U CN 201720238749U CN 206514803 U CN206514803 U CN 206514803U
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- CN
- China
- Prior art keywords
- waveguide
- gage
- retracting cylinder
- length
- external diameter
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Length Measuring Devices With Unspecified Measuring Means (AREA)
Abstract
The utility model discloses a kind of high-precision measuring rule of internal-and external diameter, problem to be solved is how accurately to measure the inside/outside diameter sizes such as tunnel.The gage includes magnetostrictive displacement meter and retracting cylinder, magnetostrictive displacement meter includes electronics end, waveguide, position magnet and waveguide protective case, electronics end is fixedly linked with waveguide, position magnet ring is enclosed on outside waveguide, retracting cylinder ring set is outside waveguide, position magnet is fixed in retracting cylinder, waveguide protective case is fixedly linked with electronics end, waveguide protection, which is bought or get by illegal means, to be enclosed on outside retracting cylinder, gage two ends parallel to the axis direction respectively with the certain interior survey end of length, vertical axis direction respectively has the certain exterior measuring end of length, the pipe spirit level in the direction that parallels to the axis and the circular bubble in vertical axis direction are installed on gage.Pipe spirit level and circular bubble ensure that gage is severity and vertical, and gage length is strictly distance between two-end-point when using, while magnetostrictive displacement meter precision is very high, common guarantee measurement accuracy.
Description
Technical field
The utility model is related to field of measuring technique, in particular in tunnel, bridge opening, house, vehicle, large-scale instrument etc.
The instrument that outside dimension is accurately measured.
Background technology
Increasing recently as underground engineering, the construction of Tunnel Engineering just increases at an unprecedented rate.How
The management for further doing constructing tunnel excavation quality well is the problem of builders constantly think, inquired into, and tunnel cross-section measurement
The constructing tunnel that develops into of technology provides a detection, the powerful measure of control tunnel excavation quality.
Due to the limitation of tunnel internal-and external diameter, modern section survey method be using laser range finder or total powerstation and
The integrated Section measuring system of computer realizes that tunnel monitoring measurement, which can only pass through, to be realized, the maximum essence of this method for measurement
Degree is in grade, it is impossible to meet the requirement of some engineering projects for requiring that accuracy in measurement is high.
It is bridge opening, house, vehicle, large-scale with the development of the society, requirement of the engineering project to accuracy in measurement also more and more higher
The measurement of the inside/outside diameter sizes such as instrument equally exists above mentioned problem, and how to improve the measurement accuracy of inside/outside diameter size turns into urgent need solution
Certainly the problem of.
The content of the invention
Problem to be solved in the utility model is how accurately to measure in tunnel, bridge opening, house, vehicle, large-scale instrument etc.
Outside dimension.
A kind of high-precision measuring rule of internal-and external diameter, including magnetostrictive displacement meter and retracting cylinder, magnetostrictive displacement meter include electricity
Sub- end, waveguide, position magnet and waveguide protective case, electronics end is fixedly linked with waveguide, and position magnet ring is enclosed on waveguide
Pipe is outer, and retracting cylinder ring set is outside waveguide, and position magnet is fixed in retracting cylinder, waveguide protective case and electronics end stationary phase
Even, waveguide protection is bought or get by illegal means and is enclosed on outside retracting cylinder, and the gage two ends direction that parallels to the axis respectively has the certain interior survey end of length, vertically
Axis direction respectively has pipe spirit level and the vertical axis side that the direction that parallels to the axis is provided with the certain exterior measuring end of length, gage
To circular bubble.Preferably, pipe spirit level is arranged on electronics end, and circular bubble is arranged on the exterior measuring end of electronics end one end
On.Preferably, digital display screen is installed on electronics end.Preferably, gage contracting short length is 2.5-5.0m, extends duration
Spend twice during to shorten.
When surveying horizontally and vertically length, leveling is used respectively for pipe spirit level and circular bubble, and it is strict for ensure that gage
Horizontally and vertically, measurement error is reduced；In use, stretching out gage, its two ends is set to prop up space wall, therefore gage length
It is strictly distance between two-end-point, while magnetostrictive displacement meter precision is very high, the common guarantee precision of measurement.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of the high-precision measuring rule of internal-and external diameter；
Fig. 2 is magnetostrictive displacement meter structural representation；
Fig. 3 is that magnetostrictive displacement meter installs telescopic cylinder structure schematic diagram additional；
Fig. 4 is that magnetostrictive displacement meter installs retracting cylinder and waveguide protective case structural representation additional；
In figure：1. magnetostrictive displacement meter, 2. retracting cylinders, 3. electronics ends, 4. waveguides, 5. position magnet, 6. waveguides
Protective case, 7. interior survey ends, 8. digital display screens, 9. exterior measuring ends, 10. pipe spirit levels, 11. circular bubbles.Embodiment
As shown in accompanying drawing 1-4, a kind of high-precision measuring rule of internal-and external diameter, including magnetostrictive displacement meter and retracting cylinder, mangneto is stretched
Contracting displacement meter includes electronics end, and waveguide, position magnet and waveguide protective case, electronics end are fixedly linked with waveguide, position
Magnet ring is enclosed on outside waveguide, and retracting cylinder ring set is outside waveguide, and position magnet is fixed in retracting cylinder, waveguide protective case with
Electronics end is fixedly linked, and waveguide protection is bought or get by illegal means and is enclosed on outside retracting cylinder, and the gage two ends direction that parallels to the axis respectively has length certain
Interior survey end, vertical axis direction respectively has the pipe level that the direction that parallels to the axis is provided with the certain exterior measuring end of length, gage
Device and the circular bubble in vertical axis direction.
When surveying horizontally and vertically length, leveling is used respectively for pipe spirit level and circular bubble, and it is strict for ensure that gage
Horizontally and vertically, measurement error is reduced；In use, stretching out gage, its two ends is set to prop up space wall, therefore gage length
It is strictly distance between two-end-point；Gage only includes two sections of magnetostrictive displacement meter and retracting cylinder, can reduce the skew of junction
Error；Magnetostrictive displacement meter precision is very high simultaneously, the precision of common guarantee measurement.Survey measurements is equal to when gage shortens
Original is long plus the gage extended length read on magnetostrictive displacement meter.
Magneto strictive sensor is the high accuracy displacement sensor developed using " magnetostriction principle ", is connect using non-
Metering system is touched, due to reasons such as friction, abrasions the service life of sensor will not be caused to reduce.Its good environment is adapted to
Property, reliability and stability, it is extremely easy to use, have bright compared with the products such as conductive rubber, LVDT, resistor type displacement sensor
Aobvious advantage.Its output signal is a real absolute position output, rather than ratio or need again enhanced processing
Signal, so in the absence of the situation of signal drift or variate, therefore equally needs not necessarily like other displacement transducers periodically to mark again
And maintenance；Exactly because its output signal is absolute figure, if so power interruptions reclosing also will not be to data receiver structure
It is a problem, more need not returns to zero-bit again.Main reason from magnetostrictive displacement meter is that the optional 50mm of its range is arrived
8000mm, the measurement of range ability internal-and external diameter general enough, while its precision may be up to 0.002%, is converted to 2000mm survey
It is 2000 × 0.002mm=0.0025mm to measure error, can meet the requirement of high-acruracy survey.
Waveguide protection is cased with two effects：1. protect waveguide, it is to avoid it occurs physical damage；2. cause magnetostriction
The connection of displacement meter and retracting cylinder is more close, reduces measurement error.Preferably, pipe spirit level is arranged on electronics end, circle water
Quasi- device is arranged on the exterior measuring end of electronics end one end.So it is easy to the reading for adjusting Pyeong-Hwa Electronic Co. end of spirit level.Preferably, it is electric
Digital display screen is installed on sub- end.Digital display screen shows survey measurements in real time.Preferably, gage contracting short length is
2.5-5.0m, twice when length is shortens during elongation.This length range is adapted to the measurement in tunnel section, while this gage
Survey measurements by ambient, need not be particularly suitable for the measurement of the internal-and external diameter of the insufficient lights such as tunnel.
Change the length of gage, you can for internal-and external diameters such as accurate measurement bridge opening, house, vehicle, large-scale instruments.
Claims (4)
1. a kind of high-precision measuring rule of internal-and external diameter, it is characterized in that including magnetostrictive displacement meter and retracting cylinder, magnetostrictive displacement meter
Including electronics end, waveguide, position magnet and waveguide protective case, electronics end is fixedly linked with waveguide, position magnet ring set
Outside waveguide, retracting cylinder ring set is outside waveguide, and position magnet is fixed in retracting cylinder, and waveguide protective case is consolidated with electronics end
Fixed to be connected, waveguide protection, which is bought or get by illegal means, to be enclosed on outside retracting cylinder, and gage two ends parallel to the axis direction respectively with the certain interior survey end of length,
Vertical axis direction respectively has the pipe spirit level and vertical axis that the direction that parallels to the axis is provided with the certain exterior measuring end of length, gage
The circular bubble in line direction.
2. the high-precision measuring rule of a kind of internal-and external diameter according to claim 1, it is characterized in that pipe spirit level is arranged on electronics end
On, circular bubble is arranged on the exterior measuring end of electronics end one end.
3. the high-precision measuring rule of a kind of internal-and external diameter according to claim 1, it is characterized in that it is aobvious that numeral is provided with electronics end
Display screen.
4. the high-precision measuring rule of a kind of internal-and external diameter according to claim 1, it is characterized in that gage contracting short length is 2.5-
5.0m, twice when length is shortens during elongation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720238749.9U CN206514803U (en) | 2017-03-13 | 2017-03-13 | A kind of high-precision measuring rule of internal-and external diameter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720238749.9U CN206514803U (en) | 2017-03-13 | 2017-03-13 | A kind of high-precision measuring rule of internal-and external diameter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206514803U true CN206514803U (en) | 2017-09-22 |
Family
ID=59870246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720238749.9U Expired - Fee Related CN206514803U (en) | 2017-03-13 | 2017-03-13 | A kind of high-precision measuring rule of internal-and external diameter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206514803U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806159A (en) * | 2019-10-21 | 2020-02-18 | 一汽轿车股份有限公司 | Detection ruler capable of being adjusted in telescopic mode |
-
2017
- 2017-03-13 CN CN201720238749.9U patent/CN206514803U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110806159A (en) * | 2019-10-21 | 2020-02-18 | 一汽轿车股份有限公司 | Detection ruler capable of being adjusted in telescopic mode |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170922 Termination date: 20200313 |