CN109596060A - A kind of mining roof plate absciss layer sensor - Google Patents
A kind of mining roof plate absciss layer sensor Download PDFInfo
- Publication number
- CN109596060A CN109596060A CN201910048685.XA CN201910048685A CN109596060A CN 109596060 A CN109596060 A CN 109596060A CN 201910048685 A CN201910048685 A CN 201910048685A CN 109596060 A CN109596060 A CN 109596060A
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- idler wheel
- jackshaft
- gear
- fixed
- wirerope
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- 238000005065 mining Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 14
- 239000011888 foil Substances 0.000 claims description 13
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 abstract description 3
- 238000004064 recycling Methods 0.000 abstract description 3
- 230000033001 locomotion Effects 0.000 description 8
- 239000003245 coal Substances 0.000 description 7
- 238000004804 winding Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000001514 detection method Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 241000242541 Trematoda Species 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/16—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge
- G01B11/165—Measuring arrangements characterised by the use of optical techniques for measuring the deformation in a solid, e.g. optical strain gauge by means of a grating deformed by the object
Abstract
A kind of mining roof plate absciss layer sensor, including shell, wirerope idler wheel mechanism, strain measurement mechanism；Shell is equipped with fore bearing support frame, rear bearing support frame；Support sleeve is fixedly installed on fore bearing support frame, jackshaft one end is fixed in support sleeve, the other end passes through rear bearing support frame, and jackshaft is radially fixed in support sleeve but can move axially；The strain measurement mechanism includes second gear, it is characterised in that: the wirerope idler wheel mechanism include be arranged on jackshaft and can be rotated relative to jackshaft idler wheel, be fixed on the first gear of idler wheel side；Lock shaft is arranged in one end of idler wheel other side jackshaft, setting rotation rocking handle on lock shaft；Idler wheel, first gear and jackshaft are pulled out into certain distance by rotation rocking handle, first gear and second gear is detached from and cooperates；End of operation is set back idler wheel, first gear, jackshaft by rotation rocking handle.Mainly solve the problems, such as the engineering installation of sensor wirerope and recycling.
Description
Technical field
The present invention relates to technical field of coal mine safety detection, and in particular to a kind of mining roof plate absciss layer sensor.
Background technique
In recent years, the high speed development of national economy, the growth of demand year by year at double to coal, as coal mine is efficiently opened
It adopts, the geological environment of pit mining also becomes increasingly complex, and the mine of deep mining is more and more, production practice is caused to complicate,
Roof control difficulty increases；During monitoring mine pressure, due to various objective and subjective, and cause to adopt
It sinks off field, the accidents such as local roof collapse constantly occur, and the production, transport and the personal of miner for having seriously affected mine are pacified
Entirely.Relevant information shows that roof accident is the accident of Coal Transportation most serious, so the prevention for doing roof accident well is current coal
A highly important project in mine productive technology management and management of safe operation.
Traditional mine pressure detection device is incomplete, existing sensor scene recycling and to repeat mounting process complicated, cost compared with
Height, with the deep mining of mine, the requirement to execute-in-place is higher and higher, and existing sensor is unable to satisfy live reality and needs
It wants.
Summary of the invention
The present invention provides a kind of mining roof plate absciss layer sensor in view of the above shortcomings of the prior art, which can scene
Wirerope is installed, it is convenient and safe, it is high to reuse at low cost, simple process, precision.
The technical solution of the present invention is as follows: a kind of mining roof plate absciss layer sensor, including shell, wirerope idler wheel mechanism, answer
Become measuring mechanism；The shell is equipped with fore bearing support frame, rear bearing support frame；Support is fixedly installed on fore bearing support frame
Set, jackshaft one end is fixed in support sleeve, the other end passes through rear bearing support frame, jackshaft it is radially fixed in support sleeve but
It can move axially；The strain measurement mechanism includes second gear, it is characterised in that: the wirerope idler wheel mechanism includes setting
Set the idler wheel that can be rotated on jackshaft and relative to jackshaft, the first gear for being fixed on idler wheel side；Among the idler wheel other side
Lock shaft is arranged in one end of axis, setting rotation rocking handle on lock shaft；Idler wheel, first gear and jackshaft are drawn by rotation rocking handle
Certain distance out is detached from first gear and second gear and cooperates；End of operation by rotation rocking handle by idler wheel, first gear,
Jackshaft sets back.
Further, in order to realize that wirerope automatic rebounding is wound, clockwork spring is equipped with inside the idler wheel.
Further, in order to which the guide function for realizing wirerope idler wheel mechanism and different sensor combinations wirerope roll
Take turns mechanism, it is ensured that the winding direction of the wirerope of the sensor module of two combinations is consistent, and the idler wheel two sides are respectively provided with one group
Wirerope guiding axis.
Further, in order to engage the gear of wirerope idler wheel mechanism more preferably, more easily with the gear of transmission mechanism, point
Axial elastic force is carried on a shoulder pole, is additionally provided with compressed spring on the jackshaft between the idler wheel and lock shaft.
Further, in order to undertake axial compressive force, reduce the friction between idler wheel and spring, between idler wheel and compressed spring in
Between axis be equipped with plane bearing.
Further, in order to play support fixed function, lock shaft is fixed in the support plate of rear end.
Further, it for the ease of fixing sensor internal structure, is additionally provided on the shell of the sensor positioned at first
The intermediate support plate of the gear other side, jackshaft pass through intermediate support plate.
Further, it in order to realize that the extensional motion by wirerope is converted into FBG strain gauge wavelength change, realizes
Data upload in real time；The strain measurement mechanism further includes one end and the accurate silk that second gear is fixed and rotated with second gear
Thick stick, the inclined plane slide block being axially moved along precision lead screw, the foil gauge fixed blocks being fixed on fore bearing support frame；Fiber grating
Foil gauge one end is fixed by foil gauge fixed blocks, and the other end is and the contact of incline plane of inclined plane slide block and can the opposite freedom slided
End.
The invention has the benefit that present invention mainly solves the installations of the engineering of sensor wirerope and recycling to ask
Topic realizes that the wirerope scene of sensor is installed repeatedly using unique mechanical structure, improves the utilization rate of sensor, solve
Coal mining cost；It is also able to achieve and the extensional motion of wirerope is converted into FBG strain gauge wavelength change, realize data
Monitoring is uploaded in real time.
Detailed description of the invention
Fig. 1 is sensor plane structural schematic diagram provided by the invention；
Fig. 2 is three-dimensional sensor structural schematic diagram provided by the invention；
Fig. 3 is clockwork spring structural schematic diagram in wirerope idler wheel mechanism provided by the invention；
Fig. 4 is the working principle diagram of the wirerope guiding axis of sensor provided by the invention；
Fig. 5 is the structural schematic diagram of the third gear of sensor provided by the invention, precision lead screw and inclined plane slide block；
Fig. 6 is the structural schematic diagram of the inclined plane slide block of sensor provided by the invention.
In figure, 1. idler wheels, 2. wirerope, 3. first gears, 4. second gears, 5. lock shafts, 6. rotation rocking handles, 7. steel wires
Rope guiding axis, 8. clockwork springs, 9. plane bearings, 10. compressed springs, 11. clockwork spring lids, 12. shells, 13. fore bearing branch
Support, 14. center bearing brackets, 15. rear bearing support frames, 16. jackshafts, 17. support sleeves, 18. precision lead screws, 19. tiltedly
Face sliding block, 20. first inclined-planes, 21. second inclined-planes, 22. foil gauge fixed blocks, 23. first FBG strain gauges, 24. locks
Determine screw, 25. second FBG strain gauges.
Specific embodiment
It elaborates with reference to the accompanying drawings and examples to technical solution of the present invention.
Mining roof plate absciss layer sensor provided by the invention, including sensor body, shell, wirerope idler wheel mechanism are answered
Become measuring mechanism.
Referring to Figure of description 1 and 2, the shell 12 of sensor includes fore bearing support frame 13, rear bearing support frame 15, shell
Body 12 mainly plays closing and fixed function.
Support sleeve 17 is fixedly installed on fore bearing support frame 13,16 one end of jackshaft is fixed in support sleeve 17, is another
Across rear bearing support frame, jackshaft is radially fixed in support sleeve 17 but can move axially at end.Meet when jackshaft is drawn
Out when a distance, remain to be supported set support fixation.
The strain measurement mechanism includes second gear 4, and the wirerope idler wheel mechanism includes being arranged on jackshaft simultaneously
The idler wheel 1 that can rotate relative to jackshaft is fixed on the first gear 3 of idler wheel side；One end of idler wheel other side jackshaft is arranged
Lock shaft 5, setting rotation rocking handle 6 on lock shaft；Idler wheel, first gear 3 and jackshaft 16 are pulled out centainly by rotation rocking handle
Distance is detached from first gear 3 and second gear 4 and cooperates；End of operation is by rotating rocking handle for idler wheel, first gear, centre
Axis sets back.
Idler wheel is located at enclosure interior, and first gear and the idler wheel of idler wheel side are rigidly fixed, can be rotated with idler wheel.On idler wheel
It is wrapped wirerope 2, idler wheel, first gear are fixed on an axis through jackshaft 16.
Lock shaft is fixed in rear end support plate 15, and lock shaft a part is located at the outside of rear end support plate, that is, shell
The outside of body.
Rotation rocking handle also is located at the outside of shell, rotates 6 similar operations handle of rocking handle.
First gear 3 and second gear 4 are meshing relations, and first gear drives the rotation of second gear.
Intermediate support plate is additionally provided on the shell of sensor, intermediate support plate is located at the other side and first of first gear
Gear does not contact.Intermediate support plate does not influence the rotation of first gear and second gear.
The jackshaft other end passes through intermediate bearing support plate 14 and rear bearing support plate.
When normal operation of sensor, rotation rocking handle and lock shaft are locked, and first gear is engaged with second gear, wirerope
Extensional motion can drive idler wheel, first gear rotation.
When needing replacing wirerope, rotation rocking handle is unlocked with lock shaft, acts on jackshaft by rotating rocking handle,
Idler wheel and first gear, jackshaft are pulled out into certain distance, first gear 3 and second gear 2 is detached from and cooperates；Jackshaft is propping up
It moves axially in support set 17 but still is fixedly supported by support frame；Wirerope idler wheel mechanism is independent structure at this time, and idler wheel can
It to be rotated at random winding wire ropes, will not influence other mechanisms of sensor internal, can guarantee that strain measurement mechanism etc. mutually shuts down
Structure does not change therewith, realizes that the wirerope field engineeringization of sensor is installed repeatedly.Wind is not limited by rope capacity,
Wirerope can expand to 20 meters from 1 meter.
After winding wire ropes end of operation, idler wheel, first gear and jackshaft are set back by rotation rocking handle.First
Gear is engaged with second gear, and jackshaft returns to support sleeve original position.
Rear end support plate 15 mainly rises and supports fixed, sealing process, fixes lock shaft 5, can also support jackshaft 16.
Wirerope idler wheel mechanism field engineering wirerope 2 is installed repeatedly, is exerted oneself, is acted on toward outside by rotation rocking handle
On jackshaft, idler wheel, first gear, jackshaft are pulled out into certain distance simultaneously, is disengaged between gear at this time, rotates rocking handle
The locking with lock shaft is exited, wirerope can be wound with swing roller at this time, after winding specified range, rotation is shaken
Handle, which is rotated to, to be pushed in idler wheel with lock shaft parallel direction, promotion rotation rocking handle, engages, set back between gear.
Preferably, compressed spring 10 is located on the jackshaft between idler wheel and lock shaft, is located at enclosure interior, pressure
Contracting spring is exactly the spring covered on jackshaft, there is Telescopic.Intelligible, compressed spring can share a part of axial bullet
Power makes the movable part of wirerope idler wheel mechanism be easier to set back, and first gear engages second gear.
In order to undertake axial compressive force, the friction of idler wheel and spring is reduced, the jackshaft between idler wheel and compressed spring is equipped with
Plane bearing 9.
The winding of wirerope automatic rebounding is realized, the clockwork spring inside idler wheel 1 is passed through as optimal technical scheme referring to Fig. 3
Spring 8, when wirerope 2 is driven 1 rotary motion of idler wheel by straight pull, idler wheel 1 is rotated along jackshaft 16, clockwork spring
8 carry out preload stress；When the straight pull that wirerope 2 is subject to is removed, clockwork spring rebound drives the revolution of idler wheel 1 that wirerope is twined
Wraparound idler wheel.
8 both ends of clockwork spring are separately fixed on jackshaft 16 and idler wheel 1, intermediate bearing, lock shaft and rear end bearing branch
Support is set as an entirety, and jackshaft, lock shaft cannot rotate, and the outside of clockwork spring, the side of idler wheel are additionally provided with clockwork spring bullet
Spring lid.
Shown in Fig. 4, as more preferably technical solution, realizes the guide function of wirerope idler wheel mechanism, pass through two groups of steel wires
Guiding axis 7 of restricting realizes that wirerope guiding axis 7 is fixed on housing 12, be specifically fixed on intermediate support plate and rear end support plate it
Between, positioned at the left and right sides of idler wheel, wirerope guiding axis is hollow tubular structure, and centre can be such that wirerope passes through, play and lead
To effect.Sensor is divided into deep basic point measurement sensor and shallow foundation point measurement sensor, deep basic point measurement sensor and shallow foundation
The internal structure of point measurement sensor is consistent, and the two is applied in combination.The idler wheel of single sensor is respectively arranged on the left side and the right side one
A wirerope guiding axis, the winding direction of the wirerope on idler wheel 1 are all clockwise, in this way when two sensor combinations make
Used time, on the left of idler wheel, one is rolled from two line outlet one of steel wire respectively on the right side of idler wheel, through wirerope guiding axis 7
The vertical rope stretching of the left and right side of wheel has reached multiple groups sensor combinations idler wheel, it is ensured that the steel for the sensor module being applied in combination
The winding direction of cord is consistent.Do not have to consider which sensor puts the left side when assembly, which sensor puts the right side, each sensor
There are two guiding axis, two sensors at will turn to match, and last wirerope vertical wire outlet reaches the external component of sensor body,
In conjunction with two fixed anchor flukes respectively (deep basic point) is installed in the rock mass of top plate all the way, in addition it is installed in coal body all the way
(shallow foundation point).
The strain measurement mechanism of sensor further includes one end and the accurate silk that second gear is fixed and rotated with second gear
Thick stick 18, the inclined plane slide block 19 being axially moved along precision lead screw, the foil gauge fixed blocks 22 being fixed on fore bearing support frame；The
One FBG strain gauge, 23 one end is fixed by foil gauge fixed blocks, and the other end is and the contact of incline plane of inclined plane slide block and energy phase
To the free end of sliding.
One end of precision lead screw is fixed with second gear, and the other end is free end, and length is greater than the axial fortune of inclined plane slide block
Dynamic distance, meets axial movement of the inclined plane slide block along precision lead screw.
Preferably, as shown in figure 5, precision lead screw and second gear are interference fitted, specifically, the one of accurate lead screw
End is used as axis, and second gear covers on one end of accurate lead screw, consolidated second gear 4 and accurate lead screw 18 by screw 24
Surely become an entirety, second gear close to inclined plane slide block 19 side, bearing is installed against second gear, bearing and intermediate
Bearings plate 14 is fixed together；Realize that precision lead screw and second gear rotate synchronously, the two does not have displacement difference.
As shown in fig. 6, inclined plane slide block, sides nut in the slope, such inclined plane slide block tool specially are cut by one side is stupefied
There is the first inclined-plane of an inclined-plane, inclined plane slide block covers one end in precision lead screw close to second gear, can only be along precision lead screw axial direction
Movement, cannot rotate along precision lead screw.Inclined plane slide block inner hole has screw thread and precision lead screw 18 to cooperate；
Preferred embodiment, the inclined plane slide block are set there are two inclined-plane, two bevel inclination angle reverse symmetries, the first inclined-plane 20 by
Low to high, 21 face of the second inclined-plane is from high to low.Correspondingly, inclined plane slide block is to cut sides nut in the slope for two side is stupefied.
Intelligible, inclined plane slide block is there are two inclined-plane, if one inclined-plane of setting, is only cut into the first inclined-plane i.e. for sides nut side is stupefied
It can.
It is all provided on one or two inclined-planes of inclined plane slide block between one of corresponding fixed blocks or two sides
There is FBG strain gauge, posts fiber grating on FBG strain gauge.
The foil gauge fixed blocks 22 being fixed on fore bearing support frame, the position of foil gauge fixed blocks and inclined plane slide block
19 is corresponding, and the first FBG strain gauge is equipped between the first inclined-plane and the side of corresponding fixed blocks of inclined plane slide block
23, first FBG strain gauge one end is fixed by foil gauge fixed blocks 22, and the other end is the first inclined-plane with inclined plane slide block
The free end for contacting and can be relatively free to slide.
Correspondingly, being equipped with the second fiber grating between the second inclined-plane and the side of corresponding fixed blocks of inclined plane slide block
One end of foil gauge 25, the second FBG strain gauge 25 is fixed by foil gauge fixed blocks, and the other end is and inclined plane slide block
Second contact of incline plane and can opposite sliding free end, post fiber grating on FBG strain gauge.
Specifically, the initial position of 25 free end of the first FBG strain gauge 23 and the second FBG strain gauge is distinguished
In 21 middle position of 20 left end of the first inclined-plane and the second inclined-plane of inclined plane slide block, purpose is when inclined plane slide block moves axially, and the
The first FBG strain gauge deformation of one inclined-plane, 20 side is ascending, and the second fiber grating of 21 one side of the second inclined-plane is answered
It is descending to become piece deformation；Such difference deformation can bring error with compensation temperature.
After sensor installation fixes, wirerope is pulled to drive roller motion, idler wheel and the first tooth when top plate deforms
Wheel rigidity is combined together, and idler wheel rotation is synchronous with first gear rotation.
First gear 3 engages second gear 4, and second gear 4 drives lead screw rotation, and inclined plane slide block, which is axially moved, pushes optical fiber
The wirerope extensional motion of wirerope idler wheel mechanism is passed to FBG strain gauge wavelength and become by grating strain piece radial deformation
Change, realizes that data upload in real time.
It should be understood that the invention is not limited to these examples shown in this article, it is all in spirit of the invention and
Within principle, any modification, equivalent substitution, improvement and etc. done be should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of mining roof plate absciss layer sensor, including shell (12), wirerope idler wheel mechanism, strain measurement mechanism；The shell
Body (12) is equipped with fore bearing support frame (13), rear bearing support frame (15)；Fore bearing support frame is fixedly installed support on (13)
It covers (17), jackshaft (16) one end is fixed in support sleeve (17), the other end passes through rear bearing support frame, and jackshaft is in support sleeve
It is interior radially fixed but can move axially；The strain measurement mechanism includes second gear (4), it is characterised in that: the steel wire
Rope idler wheel mechanism include be arranged on jackshaft and can relative to jackshaft rotation idler wheel (1), be fixed on the first of idler wheel side
Gear (3)；Lock shaft (5) are arranged in one end of idler wheel other side jackshaft, setting rotation rocking handle (6) on lock shaft；Pass through rotation
Idler wheel, first gear (3) and jackshaft (16) are pulled out certain distance by rocking handle, are detached from first gear (3) and second gear (4)
Cooperation；End of operation is set back idler wheel, first gear, jackshaft by rotation rocking handle.
2. sensor according to claim 1, it is characterised in that: be equipped with clockwork spring (8) inside the idler wheel (1).
3. sensor according to claim 1, it is characterised in that: be respectively provided with one group of wirerope at left and right sides of the idler wheel and lead
To axis (7).
4. sensor according to claim 1, it is characterised in that: also set on the jackshaft between the idler wheel and lock shaft
There are compressed spring (10).
5. sensor according to claim 4, it is characterised in that: the jackshaft between idler wheel and compressed spring is equipped with plane
Bearing (9).
6. sensor according to claim 1, it is characterised in that: lock shaft is fixed on rear end support plate (15).
7. sensor according to claim 1, it is characterised in that: be additionally provided on the shell of the sensor positioned at the first tooth
The intermediate support plate (14) of the other side is taken turns, jackshaft passes through intermediate support plate.
8. sensor described in -7 any claims according to claim 1, it is characterised in that: the strain measurement mechanism is also wrapped
It includes one end and second gear is fixed and with the precision lead screw (18) that second gear rotates, it is sliding along the inclined-plane that precision lead screw is axially moved
Block (19), the foil gauge fixed blocks (22) being fixed on fore bearing support frame；First FBG strain gauge (23) one end by
Foil gauge fixed blocks are fixed, and the other end is and the contact of incline plane of inclined plane slide block and can the opposite free end slided.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910048685.XA CN109596060A (en) | 2019-01-18 | 2019-01-18 | A kind of mining roof plate absciss layer sensor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910048685.XA CN109596060A (en) | 2019-01-18 | 2019-01-18 | A kind of mining roof plate absciss layer sensor |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631791A (en) * | 2019-01-18 | 2019-04-16 | 山东道宽智能科技有限公司 | A kind of passive roof delamination sensor of mining wide range fiber grating |
| CN109855556A (en) * | 2019-01-18 | 2019-06-07 | 山东道宽智能科技有限公司 | A kind of passive visual roof delamination sensor of mining wide range fiber grating |
| CN111307057A (en) * | 2020-03-13 | 2020-06-19 | 西安工程大学 | Method for detecting strain of gear tooth root of shafting gear by using fiber bragg grating |
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| CN109631791A (en) * | 2019-01-18 | 2019-04-16 | 山东道宽智能科技有限公司 | A kind of passive roof delamination sensor of mining wide range fiber grating |
| CN109855556A (en) * | 2019-01-18 | 2019-06-07 | 山东道宽智能科技有限公司 | A kind of passive visual roof delamination sensor of mining wide range fiber grating |
| CN209166368U (en) * | 2019-01-18 | 2019-07-26 | 山东道宽智能科技有限公司 | A kind of passive visual roof delamination sensor of mining wide range fiber grating |
| CN209166369U (en) * | 2019-01-18 | 2019-07-26 | 山东道宽智能科技有限公司 | A kind of passive roof delamination sensor of mining wide range fiber grating |
| CN209166367U (en) * | 2019-01-18 | 2019-07-26 | 山东道宽智能科技有限公司 | A kind of mining roof plate absciss layer sensor |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109631791A (en) * | 2019-01-18 | 2019-04-16 | 山东道宽智能科技有限公司 | A kind of passive roof delamination sensor of mining wide range fiber grating |
| CN109855556A (en) * | 2019-01-18 | 2019-06-07 | 山东道宽智能科技有限公司 | A kind of passive visual roof delamination sensor of mining wide range fiber grating |
| CN111307057A (en) * | 2020-03-13 | 2020-06-19 | 西安工程大学 | Method for detecting strain of gear tooth root of shafting gear by using fiber bragg grating |
| CN111307057B (en) * | 2020-03-13 | 2022-04-12 | 西安工程大学 | Method for detecting strain of gear tooth root of shafting gear by using fiber bragg grating |
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