CN106802354A - NPR anchor cables constant-resistance running body speed and deviation meter - Google Patents
NPR anchor cables constant-resistance running body speed and deviation meter Download PDFInfo
- Publication number
- CN106802354A CN106802354A CN201710052975.2A CN201710052975A CN106802354A CN 106802354 A CN106802354 A CN 106802354A CN 201710052975 A CN201710052975 A CN 201710052975A CN 106802354 A CN106802354 A CN 106802354A
- Authority
- CN
- China
- Prior art keywords
- support
- framework
- frame
- roller
- constant
- 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.)
- Granted
Links
- 238000005096 rolling process Methods 0.000 claims abstract description 9
- 238000006073 displacement reaction Methods 0.000 abstract description 12
- 230000033001 locomotion Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 238000012827 research and development Methods 0.000 description 6
- 238000012360 testing method Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000012669 compression test Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000009863 impact test Methods 0.000 description 1
- 238000003331 infrared imaging Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
A kind of NPR anchor cables constant-resistance running body speed and deviation meter, it includes：Framework, with an opening, the periphery for being set in anchor cable；Support, is multiple, located at the inwall of the frame openings；Roller, is multiple, the end of the support is respectively arranged on, for being close to the surface scrolls of anchor cable；Sensor, is connected with the roller, for detecting the rolling speed of the roller and rolling distance.NPR anchor cables are in drawing process, effect due to constant-resistance body to sleeve wall, sleeve can occur a certain amount of expansion, due to the expansion process of sleeve be it is slow occur, and movement velocity and displacement with constant-resistance body and produce, it is of the invention then based on the expansion, measure speed and the expansion displacement point of expansion, and the expansion and expansion displacement point are perceived by roller, and then speed and the displacement of constant-resistance body are calculated, for the energy for studying anchor cable provides reliable basis.
Description
Technical field
The present invention relates to NPR anchor cable operational parameter detection technical fields, more particularly to a kind of NPR anchor cables constant-resistance running body speed
Degree and deviation meter.
Background technology
In the protection and monitoring of current deep basal pit, deep mining and high slope, the use of anchor cable is very frequently and universal,
But under some engineering specifications, general anchor cable is simultaneously not suitable with, such as, in heavily stressed tunnel, the deflection of general anchor cable is one
Fixed, after deformation range of the deflection more than itself, its mechanical property can be substantially reduced, while can also destroy；In high slope
The anchor cable of upper reinforcing, can be disrumpent feelings due to big impact, so as to lose the performance of itself.The limitation of these two aspects is referred to as anchor cable
Time, energy and fund input can be born large deformation and big by the bottleneck of development, numerous research units and personnel in research and development
The novel anchor rod of tensile strength（Rope）On.Wherein comparing has including for representative：The D types anchor pole of Norway's research and development, Australia's research and development
Roofex large deformation anchor rods, Sweden research and development without sleeve pipe large deformation anchor rod and China research and development H types large deformation anchor rod, can contract
Formula long anchor cable, constant resistance and large deformation anchor rod（Rope）（NPR anchor poles or anchor cable）.In the R＆D process of anchor cable, necessarily need to anchor cable
Mechanical characteristic, deformation characteristic, destruction situation etc., the experimental study of some influence anchor cable attributes, the method for experimental study includes
Impact test, compression test and static(al) tension test.
The current static(al) tension test research being concentrated mainly on to NPR anchor cables, in experimentation, finds NPR anchor cables tool
There are large deformation, constant-resistance high, energy-absorbing, wherein energy-absorbing is the pulling force acted on anchor cable by testing machine, and along with a large amount of
The generation of heat energy.In terms of the mechanism that research heat energy is produced, laser thermodetector and thermal infrared imaging instrument are used, can be clearly
Anchor cable is seen in drawing process, has obvious heat energy to produce, but these situations are only the forms of expression of energy, are only and grind
Study carefully anchor cable energy and certain presentation data is provided, how to be done work for anchor cable inside and the state of anchor cable acting can not be carried
For according to both problems, it is necessary to design the test equipment adaptable with it according to the shape and the characteristics of motion of anchor cable itself.
Also, because the constant-resistance body of NPR anchor cables is in sleeve inner, during constant-resistance body is moved in sleeve, itself and sleeve lining friction
Substantial amounts of heat is produced, but the motion process of constant-resistance body is measured in sleeve inner, feasibility is substantially zeroed.
The content of the invention
It is an object of the invention to provide a kind of NPR anchor cables constant-resistance running body speed and deviation meter, to measure in real time
Displacement and speed of the constant-resistance body inside anchor cable.
To achieve these goals, the present invention provides following technical scheme：
A kind of NPR anchor cables constant-resistance running body speed and deviation meter, it includes：Framework, with an opening, for being set in
The periphery of anchor cable；Support, is multiple, located at the inwall of the frame openings；Roller, is multiple, is respectively arranged on the support
End, for being close to the surface scrolls of anchor cable；Sensor, is connected with the roller, the rolling speed for detecting the roller
With rolling distance.
Preferably, the framework is curved, and the side of the framework is additionally provided with for preventing the framework inclined
Support frame, support wheel, one end of support frame as described above are connected to the framework, the other end and set the support wheel, the support wheel
For the surface scrolls in anchor cable.
Preferably, the support includes first kind support, Second Type support, and the first kind support can for length
Stretching structure, the Second Type support is rigid structure, and the first kind branch is set up in the frame openings inwall
Both sides, the Second Type branch is set up in the top of the frame openings inwall.
Preferably, the first kind support includes two the first supporting legs, the first wheel shafts, and the corresponding roller is located at institute
State on the first wheel shaft, the two ends of first wheel shaft are respectively arranged on one end of described two first supporting legs, described two first
The other end of leg is fixed on the framework；The Second Type support includes two the second supporting legs, the second wheel shafts, corresponding institute
Roller is stated on second wheel shaft, the two ends of second wheel shaft are respectively arranged on one end of described two second supporting legs, institute
The other end for stating two the second supporting legs is fixed on the framework；Wherein, the first supporting leg includes extensible member, and second supporting leg is
Stud through the framework, the adjusting nut positioned at the frame inner wall, the fixing nut positioned at the framework outer wall.
Preferably, the sensor is also associated with data wire, the display of display data, use for Data Over Cable
In the antenna of wirelessly transmitting data.
Analysis understands that in drawing process, the effect due to constant-resistance body to sleeve wall, sleeve necessarily NPR anchor cables can occur
The expansion of amount, due to the expansion process of sleeve be it is slow occur, and movement velocity and displacement with constant-resistance body and produce, this
Invention measures speed and the expansion displacement point of expansion then based on the expansion, and perceives the expansion and expansion displacement point by roller,
And then speed and the displacement of constant-resistance body are calculated, for the energy for studying anchor cable provides reliable basis.
Brief description of the drawings
Fig. 1 is the front view of the embodiment of the present invention；
Fig. 2 is the side view of the embodiment of the present invention；
Fig. 3 is the top view of the embodiment of the present invention；
Fig. 4 is the structural representation of the Second Type support of the embodiment of the present invention；
Fig. 5 is the structural representation of the first kind support of the embodiment of the present invention.
Specific embodiment
The present invention is described in further details with reference to the accompanying drawings and detailed description.
As shown in Figure 1-Figure 3, the embodiment of the present invention includes：Framework 1, support frame 2, first kind support B, Second Type branch
Frame A, roller 6, sensor 8.In order to clearly describe the application of the present embodiment, Fig. 1-Fig. 3 also show the sleeve of NPR anchor cables
（Unmarked, the circle of Fig. 1 central areas represents sleeve）.
Specifically, framework 1 is used to be set in the sleeve periphery of anchor cable, with an opening, is easy to sleeve embedding from the opening
Enter the center of framework 1.Preferably, framework 1 is curved（The essentially circle of more than half specification）, and framework 1 is aluminum alloy material,
The requirement big to meet slim and graceful, intensity.Because framework 1 is strip arcuate structure, when being sheathed on anchor cable sleeve periphery, Ke Nengqing
Tiltedly, in consideration of it, the side of the framework 1 of the present embodiment is provided with for preventing inclined support frame 2, support wheel（It is unmarked, in figure
Through clearly showing）, one end of support frame 2 is connected to the framework 1, other end and sets support wheel.Using when, support wheel be used in sleeve
Surface scrolls.Certainly, support frame 2 and corresponding support wheel are preferably plurality of, to stablize support frame 1, it is kept stabilization
Vertical state.
In order that in the middle of sleeve stabilization, accurately embedded multiple roller 6, the support of the present embodiment includes that length elastomeric is variable
First kind support B, rigid Second Type support A, it is preferable that the first kind support B with length Collapsible structure
For one, structure are two in rigid Second Type support A, three is equably located at the inwall of the opening of framework 1, the first kind
, located at the both sides of the opening of framework 1 inwall, Second Type support A is located at the top of the opening of framework 1 inwall for support B.
Further, with reference to shown in Fig. 5, first kind support B includes two the first supporting legs 12, the first wheel shafts 11, accordingly
Roller 6 on the first wheel shaft 11, the two ends of the first wheel shaft 11 are respectively arranged on two one end of the first supporting leg 12, two first
The other end of supporting leg 12 is fixed on framework 1.More specifically, the first supporting leg includes coaxial extensible member, stud, extensible member is to subtract
Shake bar, elastic pump etc., the first wheel shaft 11 is connected between two extensible members.One end of two studs is connected to the one of extensible member
End, the other end then provides nut and is fixed on framework 1.Second Type support A includes two the second supporting legs 3, the second wheel shafts（Do not mark
Note）, on the second wheel shaft, the two ends of the second wheel shaft are respectively arranged on two one end of the second supporting leg 3, two to corresponding roller 6
The other end of the second supporting leg 3 is fixed on framework 1.Specifically, the second supporting leg 3 is through the stud of framework 1, positioned at frame inner wall
Adjusting nut 5, the fixing nut 4 positioned at the outer wall of framework 1.When needing to adjust the height of roller 6, the height of mobile adjusting nut 5
Degree, then fixed with fixing nut 4.
As described above, roller 6 is multiple, and first kind support B, Second Type support A are corresponded, and are respectively arranged on two
On the wheel shaft of type bracket end, for being close to the surface scrolls of sleeve.Constant-resistance body is moved in sleeve, sleeve expansion, should
Expansion will promote roller 6 towards opposite reverse movement.
Sensor 8 is connected with roller 6, for detecting the rolling speed of roller 6 and rolling distance.Detected using sensor 8
The velocity of rotation of roller 6, the technology of total distance are more ripe, and utilization can utilize mechanical sensor（The present embodiment）, electricity
Minor sensor（Such as Hall sensor, infrared sensor etc.）.Preferably, sensor 8 is also associated with for wire transmission number
According to data wire 7, display data display 9, the antenna 13 for wirelessly transmitting data.
During using the present embodiment, by lifting corresponding extensible member, of short duration compression first kind support B makes the present embodiment
It is inserted on anchor cable sleeve to be measured.Then, the roller 6 of two types support is close on sleeve, and adjust support frame
2.Rotation roller 6, sees the measuring state of sensor 8.By the zeroing data of sensor 8, and start experiment.Constant-resistance body is moved in sleeve
Dynamic, its movement institute position extremely is exactly the position that roller is expanded, and the expansion node will order about roller 6 towards swollen without generation
Swollen position movement, and then know the mobile data of constant-resistance body in real time by the measurement data of sensor 8.
To sum up, the corner angle pushing rolling wheels motion that the present invention can be produced with sleeve expansion, the speed of expansion and displacement
The as speed of constant-resistance body and displacement, the method that inherent change is reacted according to the change with appearance, the present invention can be in motion
During measure speed and the displacement of constant-resistance body.
As known by the technical knowledge, the present invention can be by other essence without departing from its spirit or the embodiment party of essential feature
Case is realized.Therefore, embodiment disclosed above, for each side, is all merely illustrative, and is not only.Institute
Have within the scope of the present invention or be included in the invention in the change being equal in the scope of the present invention.
Claims (5)
1. a kind of NPR anchor cables constant-resistance running body speed and deviation meter, it is characterised in that including：
Framework, with an opening, the periphery for being set in anchor cable；
Support, is multiple, located at the inwall of the frame openings；
Roller, is multiple, the end of the support is respectively arranged on, for being close to the surface scrolls of anchor cable；
Sensor, is connected with the roller, for detecting the rolling speed of the roller and rolling distance.
2. NPR anchor cables constant-resistance running body speed according to claim 1 and deviation meter, it is characterised in that the frame
Frame is curved, and the side of the framework is additionally provided with for preventing the inclined support frame of the framework, support wheel, the support
One end of frame is connected to the framework, the other end and sets the support wheel, and the support wheel is used for the surface scrolls in anchor cable.
3. NPR anchor cables constant-resistance running body speed according to claim 1 and deviation meter, it is characterised in that the branch
Frame includes first kind support, Second Type support, and the first kind support is length Collapsible structure, the Second Type
Support is rigid structure, and the first kind branch is set up in the both sides of the frame openings inwall, the Second Type branch
It is set up in the top of the frame openings inwall.
4. NPR anchor cables constant-resistance running body speed according to claim 3 and deviation meter, it is characterised in that described
One type support includes two the first supporting legs, the first wheel shafts, and the corresponding roller is located on first wheel shaft, described first
The two ends of wheel shaft are respectively arranged on one end of described two first supporting legs, and the other end of described two first supporting legs is fixed on the frame
On frame；
The Second Type support includes two the second supporting legs, the second wheel shafts, and the corresponding roller is located at second wheel shaft
On, the two ends of second wheel shaft are respectively arranged on one end of described two second supporting legs, the other end of described two second supporting legs
It is fixed on the framework；
Wherein, the first supporting leg includes extensible member, and second supporting leg is through the stud of the framework, positioned at the frame inner wall
Adjusting nut, the fixing nut positioned at the framework outer wall.
5. NPR anchor cables constant-resistance running body speed according to claim 1 and deviation meter, it is characterised in that the biography
Sensor is also associated with data wire, the display of display data, the antenna for wirelessly transmitting data for Data Over Cable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052975.2A CN106802354B (en) | 2017-01-24 | 2017-01-24 | NPR anchor cable constant-resistance running body speed and deviation meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710052975.2A CN106802354B (en) | 2017-01-24 | 2017-01-24 | NPR anchor cable constant-resistance running body speed and deviation meter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106802354A true CN106802354A (en) | 2017-06-06 |
| CN106802354B CN106802354B (en) | 2019-11-12 |
Family
ID=58987279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710052975.2A Active CN106802354B (en) | 2017-01-24 | 2017-01-24 | NPR anchor cable constant-resistance running body speed and deviation meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106802354B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022042761A1 (en) * | 2020-11-16 | 2022-03-03 | 中国矿业大学(北京) | Npr anchor rod monitoring and control system and method for rock slope collapse disaster |
| CN117966825A (en) * | 2024-04-02 | 2024-05-03 | 河海大学 | NPR anchor bolt support bearing capacity quick testing arrangement |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6416704A (en) * | 1987-07-11 | 1989-01-20 | Mikasa Kagaku Kogyo Kk | Insecticidal and repellent composition against insect pest |
| JP2007263213A (en) * | 2006-03-28 | 2007-10-11 | Jtekt Corp | Wheel bearing device |
| KR20070105591A (en) * | 2006-04-27 | 2007-10-31 | 김재윤 | Automatic ultrasonic inspection device |
| CN102087258A (en) * | 2009-12-08 | 2011-06-08 | 中国石油大学(北京) | Oil pipe detection device |
| CN103697847A (en) * | 2013-12-27 | 2014-04-02 | 南通威明精工机械有限公司 | Steel cable wear detector |
| CN104807424A (en) * | 2015-04-16 | 2015-07-29 | 长安大学 | Contact type in-pipe surplus seam height measurement device |
| US20150300810A1 (en) * | 2013-09-30 | 2015-10-22 | Vysoká Skola Báñská- Technická Univerzita Ostrava | A method of non-contact measuring of outer dimensions of cross sections of metallurgical rod material and a modular frame for performing thereof |
| CN105424793A (en) * | 2015-11-24 | 2016-03-23 | 西安建筑科技大学 | Device for detecting steel tie rod or inhaul cable and application |
| CN105606064A (en) * | 2016-03-15 | 2016-05-25 | 中国矿业大学(北京) | Deformation anchor cable monitor, deformation anchor cable monitoring system, and monitoring method of the deformation anchor cable monitoring system |
| CN106052616A (en) * | 2016-05-23 | 2016-10-26 | 中国矿业大学(北京) | NPR anchor cable internal diameter real-time measuring method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116704A (en) * | 1997-06-18 | 1999-01-12 | Kubota Corp | Contour inspection equipment for cylindrical work |
-
2017
- 2017-01-24 CN CN201710052975.2A patent/CN106802354B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6416704A (en) * | 1987-07-11 | 1989-01-20 | Mikasa Kagaku Kogyo Kk | Insecticidal and repellent composition against insect pest |
| JP2007263213A (en) * | 2006-03-28 | 2007-10-11 | Jtekt Corp | Wheel bearing device |
| KR20070105591A (en) * | 2006-04-27 | 2007-10-31 | 김재윤 | Automatic ultrasonic inspection device |
| CN102087258A (en) * | 2009-12-08 | 2011-06-08 | 中国石油大学(北京) | Oil pipe detection device |
| US20150300810A1 (en) * | 2013-09-30 | 2015-10-22 | Vysoká Skola Báñská- Technická Univerzita Ostrava | A method of non-contact measuring of outer dimensions of cross sections of metallurgical rod material and a modular frame for performing thereof |
| CN103697847A (en) * | 2013-12-27 | 2014-04-02 | 南通威明精工机械有限公司 | Steel cable wear detector |
| CN104807424A (en) * | 2015-04-16 | 2015-07-29 | 长安大学 | Contact type in-pipe surplus seam height measurement device |
| CN105424793A (en) * | 2015-11-24 | 2016-03-23 | 西安建筑科技大学 | Device for detecting steel tie rod or inhaul cable and application |
| CN105606064A (en) * | 2016-03-15 | 2016-05-25 | 中国矿业大学(北京) | Deformation anchor cable monitor, deformation anchor cable monitoring system, and monitoring method of the deformation anchor cable monitoring system |
| CN106052616A (en) * | 2016-05-23 | 2016-10-26 | 中国矿业大学(北京) | NPR anchor cable internal diameter real-time measuring method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022042761A1 (en) * | 2020-11-16 | 2022-03-03 | 中国矿业大学(北京) | Npr anchor rod monitoring and control system and method for rock slope collapse disaster |
| CN117966825A (en) * | 2024-04-02 | 2024-05-03 | 河海大学 | NPR anchor bolt support bearing capacity quick testing arrangement |
| CN117966825B (en) * | 2024-04-02 | 2024-06-07 | 河海大学 | NPR anchor bolt support bearing capacity quick testing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106802354B (en) | 2019-11-12 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105084213B (en) | Mobile crane and moment limiting system and moment limiting method thereof | |
| CN106802354A (en) | NPR anchor cables constant-resistance running body speed and deviation meter | |
| CN107941402B (en) | Device and method for measuring inhaul cable force | |
| JP2013047629A (en) | Method for measuring structure inner space displacement and apparatus thereof | |
| KR20120125792A (en) | Impact test system using energy frame | |
| CN106767668A (en) | The measurement apparatus and measuring method of a kind of back pressure-bearing and deflection | |
| CN206531479U (en) | It is a kind of to measure the optical fiber grating inclination angle sensor at two-dimentional inclination angle | |
| CN107860329A (en) | A kind of highly sensitive fiber Bragg grating strain sensor | |
| CN107152979A (en) | Clipping cable cable power monitoring device | |
| CN106706434B (en) | Device for testing tensile force and test method | |
| CN105241648B (en) | Simulate the loading device and its application method of loess tunnel lock pin anchor tube termination stress | |
| KR101294961B1 (en) | Apparatus for lateral loading test of pile group and lateral loading testing method using the same | |
| CN103698073A (en) | Device and method for testing fastening pressure of shape memory alloy pipe joint | |
| CN104237010B (en) | Multifunctional concrete electric pole mechanical property detection platform | |
| CN106052996B (en) | Extra-high voltage direct current composite wall bushing anti-seismic test device and test method | |
| CN206648758U (en) | A kind of railing horizontal thrust measurement apparatus | |
| CN106052616B (en) | NPR anchor cable internal diameter method for real-time measurement | |
| CN107514018A (en) | The support beam counterforce device and its installation method of anchor pole pullout tests | |
| CN115452572B (en) | Test device and method for testing neutral axis position and longitudinal equivalent bending stiffness of shield tunnel | |
| CN105928774A (en) | Soil specimen resonant column device | |
| CN206450155U (en) | A kind of horizontal displacement measurement apparatus | |
| CN106643408A (en) | Horizontal displacement measuring device | |
| RU2006117441A (en) | DEVICE AND METHOD FOR MONITORING THE TECHNICAL CONDITION OF TUNNELS | |
| CN104359613B (en) | Multi-functional super large torque standard device | |
| CN210570636U (en) | Sensitization type fiber grating inclinometer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |