CN206514802U - A kind of accurate gage in inner space - Google Patents
A kind of accurate gage in inner space Download PDFInfo
- Publication number
- CN206514802U CN206514802U CN201720239228.5U CN201720239228U CN206514802U CN 206514802 U CN206514802 U CN 206514802U CN 201720239228 U CN201720239228 U CN 201720239228U CN 206514802 U CN206514802 U CN 206514802U
- Authority
- CN
- China
- Prior art keywords
- waveguide
- gage
- retracting cylinder
- displacement meter
- inner space
- Prior art date
- 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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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model discloses a kind of accurate gage in inner space, problem to be solved is how accurately to measure the interior space dimensions such as tunnel, bridge opening, house, vehicle, large-scale instrument.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, and retracting cylinder ring set is outside waveguide, and position magnet is fixed in retracting cylinder; waveguide protective case is fixedly linked with electronics end, and waveguide protection, which is bought or get by illegal means, to be enclosed on outside retracting cylinder.Gage is stretched out, its two ends is propped up space wall, therefore gage length is strictly distance between two-end-point, while magnetostrictive displacement meter precision is very high, the common guarantee precision of measurement.
Description
Technical field
It is internal empty in particular for tunnel, bridge opening, house, vehicle, large-scale instrument etc. the present invention relates to field of measuring technique
Between accurate size measure instrument.
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 in tunnel internal space, modern section survey method is to use laser range finder or total powerstation
Realized with the integrated Section measuring system of computer, tunnel monitoring measurement can only be by realizing, the maximum of this method for measurement
Precision 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 interior space dimensions such as instrument equally exists above mentioned problem, and how to improve the measurement accuracy of interior space dimension turns into anxious
The problem of need to solving.
The content of the invention
The problem to be solved in the present invention is how accurately to measure the internal sky such as tunnel, bridge opening, house, vehicle, large-scale instrument
Between size.
A kind of accurate gage in inner space, 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, which is bought or get by illegal means, is enclosed on outside retracting cylinder.Preferably, gage two ends respectively have length necessarily support survey end.Preferably, it is electric
Digital display screen is installed on sub- end.Preferably, gage contracting short length is 2.5-5.0m, two when length is shortens during elongation
Times.
Gage is stretched out, its two ends is propped up space wall, therefore gage length is strictly distance between two-end-point, while magnetic
Cause telescopic displacement meter precision very high, the precision of common guarantee measurement.
Brief description of the drawings
Fig. 1 is a kind of overall structure diagram of the accurate gage in inner space；
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. support survey end, 8. digital display screens.
Embodiment
As shown in accompanying drawing 1-4, a kind of accurate gage in inner space, 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, which is bought or get by illegal means, to be enclosed on outside retracting cylinder.
Gage is stretched out, its two ends is propped up space wall, therefore gage length is strictly distance between two-end-point；Gage is only
Including two sections of magnetostrictive displacement meter and retracting cylinder, the offset error of junction can be reduced；While magnetostrictive displacement meter precision
It is very high, the precision of common guarantee measurement.Original long add that survey measurements is equal to when gage shortens is read on magnetostrictive displacement meter
The gage extended length taken.
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 inner space general enough, while its precision may be up to 0.002%, is converted to 2000mm's
Measurement error is 2000 × 0.002mm=0.0025mm, 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, gage two ends respectively have length necessarily support survey
End.To surveying, end section is smaller, deep enough can prop up small space.Preferably, digital display screen is installed on electronics end.Numeral is aobvious
Display screen shows survey measurements in real time.Preferably, gage contracting short length is 2.5-5.0m, two when length is shortens during elongation
Times.This length range is adapted to the measurement in tunnel section, while the survey measurements of this gage need not be by ambient, especially
It is adapted to the measurement of the inner spaces of insufficient light such as tunnel.
Change the length of gage, you can for inner spaces such as accurate measurement bridge opening, house, vehicle, large-scale instruments.
Claims (4)
1. a kind of accurate gage in inner space, 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.
2. the accurate gage in a kind of inner space according to claim 1, it is characterized in that gage two ends respectively have length one
End is surveyed in fixed supporting.
3. the accurate gage in a kind of inner space according to claim 1, it is characterized in that it is aobvious that numeral is provided with electronics end
Display screen.
4. the accurate gage in a kind of inner space 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 |
|---|---|---|---|
| CN201720239228.5U CN206514802U (en) | 2017-03-13 | 2017-03-13 | A kind of accurate gage in inner space |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720239228.5U CN206514802U (en) | 2017-03-13 | 2017-03-13 | A kind of accurate gage in inner space |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206514802U true CN206514802U (en) | 2017-09-22 |
Family
ID=59870469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720239228.5U Expired - Fee Related CN206514802U (en) | 2017-03-13 | 2017-03-13 | A kind of accurate gage in inner space |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206514802U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020149A (en) * | 2017-03-13 | 2018-05-11 | 湖南科技大学 | The accurate gage in inner space |
-
2017
- 2017-03-13 CN CN201720239228.5U patent/CN206514802U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108020149A (en) * | 2017-03-13 | 2018-05-11 | 湖南科技大学 | The accurate gage in inner space |
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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 |