CN106840013A - Sliding monitoring sensor and Slope Sliding strain monitoring system - Google Patents
Sliding monitoring sensor and Slope Sliding strain monitoring system Download PDFInfo
- Publication number
- CN106840013A CN106840013A CN201611246294.1A CN201611246294A CN106840013A CN 106840013 A CN106840013 A CN 106840013A CN 201611246294 A CN201611246294 A CN 201611246294A CN 106840013 A CN106840013 A CN 106840013A
- Authority
- CN
- China
- Prior art keywords
- sliding
- fiber grating
- sensor
- monitoring
- grating
- 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.)
- Pending
Links
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
- Optical Transform (AREA)
Abstract
The invention discloses one kind sliding monitoring sensor and side slope strain monitoring system.Wherein, sliding monitoring sensor includes elastic matrix；Optical fiber optical grating array, including multiple fiber gratings, multiple optical fiber Bragg grating encapsulations are inside elastic matrix.Through the above way, when the strain of sliding monitoring sensor present position changes, elastic matrix will be deformed upon under the active force of strain, simultaneously, the index modulation cycle of multiple fiber gratings that elastic matrix inside is set and fiber core refractive index change also with the deformation of elastic matrix, and then cause the wavelength of the reflected light of fiber grating to change, therefore, the present invention can feed back the change of the reflected light wavelength before and after strain variation, effectively the sliding situation inside monitoring side slope by each fiber grating.
Description
Technical field
The present invention relates to sensor technical field, more particularly to a kind of sliding monitoring sensor and Slope Sliding strain monitoring
System.
Background technology
Subgrade settlement and side slope health monitoring systems can to greatest extent ensure highway safety operation, diagnose slide slope disease in advance
With extension highway service life.At present, the advanced technology such as sensor hydrostatic level, GPS is gradually in slope monitoring
Applied in system, but sensors with auxiliary electrode can only monitor the sliding situation on side slope surface, it is impossible to the sliding situation inside side slope is monitored,
Therefore, when the generation sliding of side slope inside, surface does not slide situation, and such monitoring is less than effective slip information.
The content of the invention
The present invention provides a kind of sliding monitoring sensor and Slope Sliding strain monitoring system, sliding to realize side slope inside
Effective monitoring of condition of shifting one's love.
In order to solve the above technical problems, the present invention provides a kind of sliding monitoring sensor, sliding monitoring sensor includes：
Elastic matrix；Optical fiber optical grating array, including multiple fiber gratings, multiple optical fiber Bragg grating encapsulations are inside elastic matrix.
Wherein, sliding monitoring sensor also includes coupler, is arranged in elastic matrix, and the input of coupler connects respectively
Connect each fiber grating；The output end of coupler draws to connect optic fiber grating wavelength (FBG) demodulator from elastic matrix.
Wherein, identification information is provided with each fiber grating, wherein, identification information includes fiber grating
Centre wavelength and position.
Wherein, the centre wavelength of each fiber grating is different, and multiple fiber grating spaced sets.
Wherein, optical fiber optical grating array includes 3-6 fiber grating.
Wherein, elastic matrix is elastic body, and multiple fiber grating circumference spaced sets are in the madial wall of elastic body
On.
Wherein, the length of elastic body is 2000-3000mm, and the radius of elastic body is 10-15mm.
Wherein, multiple fiber gratings are fixed on the madial wall of elastic body by gluing.
In order to solve the above technical problems, the present invention provides a kind of Slope Sliding strain monitoring system, Slope Sliding strain
Monitoring system includes：Sensor is monitored in above-mentioned sliding, the cunning for monitoring side slope when sliding monitoring sensor surrounding is stressed
Shift one's love condition；Optic fiber grating wavelength (FBG) demodulator, coupling sliding monitoring sensor；Remote monitoring and alarm terminal, connect fiber grating
Wavelength demodulation device.
Wherein, Slope Sliding strain monitoring system includes multiple sliding monitoring sensors, and the sliding monitoring sensor
Head and the tail link is set.
In present invention sliding monitoring sensor, when the strain of sliding monitoring sensor present position changes, elasticity
Matrix will be deformed upon under the active force of strain, meanwhile, the refractive index of multiple fiber gratings that elastic matrix inside is set is adjusted
Cycle processed and fiber core refractive index change also with the deformation of elastic matrix, and then cause the ripple of the reflected light of fiber grating
Length changes, therefore, the present invention can effectively monitor side by the reflected light wavelength before and after each fiber grating feedback strain variation
Sliding situation inside slope.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will make needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, further other can be obtained according to these accompanying drawings
Accompanying drawing.Wherein：
Fig. 1 is the structural representation of present invention sliding monitoring sensor first embodiment；
Fig. 2 is the structural representation of present invention sliding monitoring sensor second embodiment；
Fig. 3 is the structural representation of the embodiment of Slope Sliding monitoring system one of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
Fig. 1 is referred to, Fig. 1 is the structural representation of present invention sliding monitoring sensor first embodiment, the present embodiment
Sliding monitoring sensor 10 includes elastic matrix 11 and optical fiber optical grating array 12.
Elastic matrix 11 can be when the strain of the sliding monitoring local environment of sensor 10 changes, in the effect of strain
Deformed upon under power, it is possible to restored to the original state after active force disappearance.Specifically, the material of elastic matrix 11 can be PVC
(Polyvinyl chloride, polyvinyl chloride), PA (Polyamide, polyamide are commonly called as nylon) or rubber, but be not limited only to
This.Elastic matrix 11 can be elastic body, and further, the length of elastic body is 2000-3000mm, and radius is 10-
15mm, elastic matrix 11 can also be elastic cylinder, but be not limited only to this, can specifically determine according to actual needs.
Further, optical fiber optical grating array 12 includes multiple fiber gratings 121, and multiple fiber gratings 121 are packaged in bullet
Inside property matrix 11.In the present embodiment, optical fiber optical grating array 12 includes 3 fiber gratings 121, is respectively the first fiber grating
121a, the second fiber grating 121b and the 3rd fiber grating 121c, but the present invention not limit fibre grating 121 number.
Specifically, between the first fiber grating 121a, the second fiber grating 121b and the 3rd fiber grating 121c circumferences etc.
Away from being arranged on the madial wall of elastic matrix 11, i.e., the central angle between the adjacent fiber grating 121 of each two corresponding to circular arc
It it is 120 degree, to monitor the sliding situation in each orientation of side slope interior location residing for sliding monitoring sensor 10.Certainly, in other realities
In applying example, the first fiber grating 121a, the second fiber grating 121b and the 3rd fiber grating 121c can also circumferentially not etc. between
Away from being arranged on the madial wall of elastic matrix 11.Wherein, the fixed form of fiber grating 121 can be adhesive type, such as by gluing
It is fixed on the madial wall of elastic body, wherein, glue can be epoxy glue, and the fixed form of fiber grating 121 can also
It is snap-in, but is not limited only to this.
The transducing signal of fiber grating 121 is wavelength modulation, centre wavelength and the index modulation cycle of its reflection and
Fiber core refractive index is relevant.When elastic matrix 11 is deformed upon because of the strain of local environment, the index modulation of fiber grating 121
Cycle and fiber core refractive index also change, and then cause the wavelength of the reflected light of fiber grating 121 to change, specifically
Ground, when elastic matrix 11 bends, the fiber grating 121 positioned at the big neighbouring position of the radius of curvature of elastic matrix 11 reflects
Centre wavelength increase, positioned at the small neighbouring position of the radius of curvature of elastic matrix 11 fiber grating 121 reflect centre wavelength
Diminish.Therefore, sliding monitoring sensor 10 can feed back the change of reflected light wavelength before and after strain variation by each fiber grating 121
To fine grating wavelength (FBG) demodulator 20, so that effectively monitoring slides the sliding situation of side slope interior location residing for detection sensor 10.
For make optic fiber grating wavelength (FBG) demodulator 20 obtain each fiber grating 121 feedback strain variation before and after reflected light wavelength
Afterwards, analytical calculation is carried out further with reflecting light before and after strain variation is long, to draw side residing for sliding detection sensor 10
The sliding size of slope interior location simultaneously draws the principal direction of sliding, it is necessary to the output end of fiber grating 121 from elastic matrix 11
It is middle to draw to couple optic fiber grating wavelength (FBG) demodulator 20.It is save space, in the present embodiment, the output end of fiber grating 121
Optic fiber grating wavelength (FBG) demodulator 20, certainly, optical fiber can further be connected by coupler 30 after being drawn from elastic matrix 11
The output end of grating 121 can be directly connected to optic fiber grating wavelength (FBG) demodulator 20 after being drawn from elastic matrix 11.
Specifically, the output end of fiber grating 121 includes from the lead-out mode in elastic matrix 11：Elastic matrix 11 is envelope
During enclosed, an opening 111 can be set on one end of elastic matrix 11 or side wall, to draw optical fiber light from opening 111
The output end of grid 121.When elastic matrix 11 is open, i.e. the both ends open of elastic matrix 11, the output end of fiber grating 121
Can directly be drawn from one end of elastic matrix 11, but be not limited only to this.In the present embodiment, the output end of fiber grating 121
It is to set an opening 111 on the side wall of enclosed elastic matrix 11 to draw from the lead-out mode in elastic matrix 11.
To enable optic fiber grating wavelength (FBG) demodulator 20 effectively to recognize the light of each fiber grating 121 reflection, so as to judge
The main glide direction and sliding size of side slope, each fiber grating 121 are marked with the identification information of determination, including optical fiber
The centre wavelength of grating 121 and position.
Specifically, the present embodiment uses wavelength-division multiplex technique, and each fiber grating 121 is anti-using different Prague centers
Ejected wave is long, and so, the strain near the sliding monitoring either fiber grating 121 of sensor 10 changes, all can be by fiber grating
Wavelength demodulation device 20 is obtained, and determines the particular location that strain occurs by the different of wavelength.The centre wavelength of fiber grating 121
Can be 1525~1565nm, but be not limited only to this.In an application examples, the centre wavelength of the first fiber grating 121a is
Centre wavelength 1535nm, the centre wavelength 1545nm of the 3rd fiber grating 121c of 1525nm, the second fiber grating 121b, specifically
Can determine according to actual needs.
Positional information includes that fiber grating 121 is fixed on the specific orientation of elastic matrix 11, if sliding monitoring sensor 10
It is applied in sliding monitoring sensor 40, then the positional information of fiber grating 121 further includes the input application of fiber grating 121
When residing depth, to judge the particular location that sliding occurs, but be not limited only to this.
Optic fiber grating wavelength (FBG) demodulator 20 is received before and after the strain variation of each fiber grating 121 after reflected light wavelength, further
By calculating the sliding size in each orientation and determining the principal direction for sliding, the calculation for sliding size is specific as follows (with first
As a example by fiber grating 121a)：
Slip value (mm)=(λ 1 is gathering the initial values of-λ 1) × displacement coefficient
Wherein, λ 1 is the centre wavelength of the first fiber grating 121a；" initial values of λ 1 " is not deformed upon for elastic matrix 11,
Monitoring sensor 10 is such as slid when not coming into operation, the first fiber grating 121a reflections of the collection of optic fiber grating wavelength (FBG) demodulator 20
Centre wavelength；When " λ 1 is gathered " comes into operation to slide monitoring sensor 10, optic fiber grating wavelength (FBG) demodulator 20 is gathered
The first fiber grating 121a reflection centre wavelength；Displacement coefficient is obtained by empirical value or experiment value, can be 0.028-
0.033mm/pm, but be not limited only to this, with specific reference to being actually needed decision.
Likewise it is possible to the sliding size in the second fiber grating 121b and orientation residing for the 3rd fiber grating 121c is calculated,
Will not be repeated here.
Calculating the first fiber grating 121a, the second fiber grating 121b and orientation residing for the 3rd fiber grating 121c
Slip value size after, you can by the first fiber grating of multilevel iudge 121a, the second fiber grating 121b and the 3rd optical fiber
The maximum of grating 121c, you can obtain the main glide direction of side slope interior location residing for sliding monitoring sensor 10, if for example,
It is maximum using the slip value that is calculated of wavelength reflected before and after the first fiber grating 121a strain variations, then can determine whether out the
Orientation residing for one fiber grating 121a is the principal direction of side slope interior location sliding residing for sliding monitoring sensor 10.
By above-described embodiment, when the strain of sliding monitoring sensor present position changes, elastic matrix will be
Deformed upon under the active force of strain, meanwhile, elastic matrix inside set multiple fiber gratings the index modulation cycle with
And fiber core refractive index changes also with the deformation of elastic matrix, and then the wavelength of the reflected light of fiber grating is caused to become
Change, therefore, the present invention can be by the reflected light wavelength before and after each fiber grating feedback strain variation, effectively inside monitoring side slope
Sliding situation.
Fig. 2 is referred to, Fig. 2 is the structural representation of present invention sliding monitoring sensor second embodiment.Specifically, this reality
The sliding for applying sliding monitoring sensor 40 and the first embodiment of example is monitored the difference of sensor 10 and is, the sliding of the present embodiment
The optical fiber optical grating array 12 for monitoring sensor 40 includes 6 fiber gratings 121, is respectively the first fiber grating 121a, the second light
Fine grating 121b, the 3rd fiber grating 121c, the 4th fiber grating 121d, the 5th fiber grating 121e and six fiberses grating
121f, and the sliding monitoring sensor 40 of the present embodiment further includes coupler 13.
Further, coupler 13 is arranged in elastic matrix 11, and the input of coupler 13 connects the first optical fiber respectively
Grating 121a, the second fiber grating 121b, the 3rd fiber grating 121c, the 4th fiber grating 121d, the 5th fiber grating 121e
And six fiberses grating 121f, the output end of coupler 13 draws to connect optic fiber grating wavelength demodulation from elastic matrix 11
Instrument 20.
Specifically, the output end of coupler 13 includes from the lead-out mode in elastic matrix 11：Elastic matrix 11 is closing
During formula, an opening 111 can be set on one end of elastic matrix 11 or side wall, to draw coupler 13 from opening 111
Output end.When elastic matrix 11 is open, i.e. the both ends open of elastic matrix 11, the output end of coupler 13 can be direct
Drawn from one end of elastic matrix 11, but be not limited only to this.In the present embodiment, the output end of coupler 13 is from elastic matrix 11
In lead-out mode be open elastic matrix 11 one end draw.
The sliding monitoring that the specific implementation of the sliding monitoring sensor 40 of the present embodiment refers to first embodiment is passed
The description of sensor 10, will not be repeated here.
The sliding monitoring sensor of the present embodiment is internally provided with a coupler by elastic matrix, and coupler is defeated
Enter end and connect each fiber grating respectively, the output end connection connection optic fiber grating wavelength (FBG) demodulator of coupler can save transmission light
Cable, and then save space, further, the sliding monitoring sensor of the present embodiment is provided with 6 fiber gratings, compared to first
Embodiment sliding monitoring sensor, the present embodiment sliding monitoring sensor monitored density it is higher, so as to more it is sensitive simultaneously
Accurately monitor the sliding situation inside side slope.
In other embodiments, the optical fiber optical grating array 12 of sliding monitoring sensor can set 4 or 5 fiber gratings
121, but this is not limited only to, specifically can be according to actual decision.
Fig. 3 is referred to, Fig. 3 is the structural representation of the embodiment of Slope Sliding monitoring system one of the present invention, the present embodiment
Slope Sliding monitoring system 50 includes multiple sliding monitoring sensors 51, optic fiber grating wavelength (FBG) demodulator 52 and remote monitoring with
Alarm terminal 53, wherein, the head and the tail link of multiple sliding monitoring sensor 40 is set.
In the present embodiment, Slope Sliding monitoring system 50 includes 3 sliding monitoring sensors 51, but the present invention is not limited
The quantity of sliding monitoring sensor, can specifically determine according to actual needs.Sliding monitoring sensor 51 can be above-described embodiment
In sliding monitoring sensor 10, or sliding monitoring sensor 40, or sliding monitoring sensor 10 with sliding monitor
The combination of sensor 40, is specifically not construed as limiting.
Further, Slope Sliding monitoring system 50 includes wideband light source (not provided in figure), thinks sliding monitoring sensing
Each fiber grating 121 in device 51 provides light source.Optic fiber grating wavelength (FBG) demodulator 52 is respectively coupled to 3 sliding monitoring sensors
51, with the centre wavelength that each fiber grating 121 of real-time reception reflects, and using fiber grating reflected light wavelength before and after strain variation
The slip value of each orientation fiber grating 121 is calculated, so that side slope when realizing being stressed the sliding monitoring surrounding of sensor 51
The monitoring of sliding situation.Optic fiber grating wavelength (FBG) demodulator 52 is further by wired or wireless mode and remote monitoring and alarm
Terminal 53 is connected, and optic fiber grating wavelength (FBG) demodulator 52 changes in the strain of indirect detection to the sliding monitoring surrounding of sensor 53
When, early warning information is sent to by remote monitoring and alarm terminal 53 by wired or wireless way, so as to cause alarm.
The head and the tail link of multiple sliding monitoring sensors 51 is set in the present embodiment, and each light in sliding monitoring sensor 51
Fine grating 121 have determine identity identification information, including each fiber grating 121 depth and azimuth information, specifically can refer to
Description in above-mentioned sliding monitoring sensor embodiment, will not be repeated here, therefore, Slope Sliding monitoring system 50 can be supervised accurately
Survey the slip state of any depth of side slope.
Embodiments of the present invention are the foregoing is only, the scope of the claims of the invention is not thereby limited, it is every using this
Equivalent structure or equivalent flow conversion that description of the invention and accompanying drawing content are made, or directly or indirectly it is used in other correlations
Technical field, is included within the scope of the present invention.
Claims (10)
1. sensor is monitored in a kind of sliding, it is characterised in that including：
Elastic matrix；
Optical fiber optical grating array, including multiple fiber gratings, the multiple optical fiber Bragg grating encapsulation is inside the elastic matrix.
2. sensor is monitored in sliding according to claim 1, it is characterised in that the sliding monitoring sensor also includes coupling
Clutch, is arranged in the elastic matrix, and the input of the coupler connects each described fiber grating respectively；The coupling
The output end of device draws to connect optic fiber grating wavelength (FBG) demodulator from the elastic matrix.
3. sensor is monitored in sliding according to claim 1, it is characterised in that be provided with body on each described fiber grating
Part identification information, wherein, the identification information includes centre wavelength and the position of the fiber grating.
4. sensor is monitored in sliding according to claim 3, it is characterised in that the center of each fiber grating
Wavelength is different, and multiple fiber grating spaced sets.
5. sensor is monitored in sliding according to claim 1, it is characterised in that the optical fiber optical grating array includes 3-6
Fiber grating.
6. sensor is monitored in sliding according to claim 1, it is characterised in that the elastic matrix is elastic body, institute
Multiple fiber grating circumference spaced sets are stated on the madial wall of the elastic body.
7. sensor is monitored in sliding according to claim 6, it is characterised in that the length of the elastic body is 2000-
3000mm, the radius of the elastic body is 10-15mm.
8. sensor is monitored in sliding according to claim 6, it is characterised in that the multiple fiber grating is by gluing solid
Due on the madial wall of the elastic body.
9. a kind of Slope Sliding strain monitoring system, it is characterised in that including：
Sliding monitoring sensor as described in any one of right 1 to 8, is subject to answer for monitoring the sliding monitoring sensor surrounding
The sliding situation of side slope during power；
Optic fiber grating wavelength (FBG) demodulator, couples the sliding monitoring sensor；
Remote monitoring and alarm terminal, connect the optic fiber grating wavelength (FBG) demodulator.
10. strain monitoring system according to claim 9, it is characterised in that the Slope Sliding strain monitoring system bag
Multiple sliding monitoring sensors are included, and the sliding monitoring sensor head and the tail link is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246294.1A CN106840013A (en) | 2016-12-29 | 2016-12-29 | Sliding monitoring sensor and Slope Sliding strain monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611246294.1A CN106840013A (en) | 2016-12-29 | 2016-12-29 | Sliding monitoring sensor and Slope Sliding strain monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106840013A true CN106840013A (en) | 2017-06-13 |
Family
ID=59113284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611246294.1A Pending CN106840013A (en) | 2016-12-29 | 2016-12-29 | Sliding monitoring sensor and Slope Sliding strain monitoring system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106840013A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860824A (en) * | 2017-10-23 | 2018-03-30 | 北京航空航天大学 | Visit anti-integral slope anchorage structure and detection method |
| CN108180841A (en) * | 2018-01-08 | 2018-06-19 | 河北工业大学 | A kind of landslide internal displacement monitoring method based on fiber grating |
| CN109176572A (en) * | 2018-10-22 | 2019-01-11 | 山东大学 | A kind of sliding detection probe and working method for robot finger tip |
| CN111812290A (en) * | 2020-07-17 | 2020-10-23 | 山东建筑大学 | Water pollution monitoring biosensor, monitoring system and monitoring method |
| CN112504311A (en) * | 2020-12-14 | 2021-03-16 | 广州广电计量检测股份有限公司 | Reflection type fiber grating system and demodulation calibration device |
| CN112880581A (en) * | 2021-01-15 | 2021-06-01 | 潍柴动力股份有限公司 | Cylinder sleeve deformation amount measuring method and device |
| CN113514001A (en) * | 2021-05-10 | 2021-10-19 | 上海电力大学 | Iron tower strain monitoring rod piece |
| CN114322819A (en) * | 2022-03-15 | 2022-04-12 | 中国科学院武汉岩土力学研究所 | Fiber grating sensor, strain monitoring method and strain monitoring system for deep roadway surrounding rock |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397903A (en) * | 2008-11-05 | 2009-04-01 | 大庆油田有限责任公司 | Method for monitoring sleeve circumferential strain by using optical fibre grating sensor |
| CN103000001A (en) * | 2012-11-30 | 2013-03-27 | 北京佳讯飞鸿电气股份有限公司 | Landslide monitoring system for railway disaster prevention |
| CN203337110U (en) * | 2013-07-25 | 2013-12-11 | 无锡市政设计研究院有限公司 | Sleeve type optical fiber grating reinforcement meter |
| CN203587254U (en) * | 2013-09-22 | 2014-05-07 | 济南科泰测控技术有限公司 | Three-dimensional fiber grating sensor |
| CN104367324A (en) * | 2013-08-16 | 2015-02-25 | 上海微创电生理医疗科技有限公司 | Pressure sensor, manufacturing method of pressure sensor, mold and medical catheter |
| CN104764438A (en) * | 2015-04-23 | 2015-07-08 | 山东大学 | Inclinometer sensor capable of identifying circumferential direction based on fiber bragg grating |
| CN105115440A (en) * | 2015-08-19 | 2015-12-02 | 华中科技大学 | Partial displacement measurement method based on fiber grating sensor |
| CN106247965A (en) * | 2016-07-15 | 2016-12-21 | 东南大学 | Tunnel surrounding monitoring method based on multifunctional intellectual anchor pole |
-
2016
- 2016-12-29 CN CN201611246294.1A patent/CN106840013A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101397903A (en) * | 2008-11-05 | 2009-04-01 | 大庆油田有限责任公司 | Method for monitoring sleeve circumferential strain by using optical fibre grating sensor |
| CN103000001A (en) * | 2012-11-30 | 2013-03-27 | 北京佳讯飞鸿电气股份有限公司 | Landslide monitoring system for railway disaster prevention |
| CN203337110U (en) * | 2013-07-25 | 2013-12-11 | 无锡市政设计研究院有限公司 | Sleeve type optical fiber grating reinforcement meter |
| CN104367324A (en) * | 2013-08-16 | 2015-02-25 | 上海微创电生理医疗科技有限公司 | Pressure sensor, manufacturing method of pressure sensor, mold and medical catheter |
| CN203587254U (en) * | 2013-09-22 | 2014-05-07 | 济南科泰测控技术有限公司 | Three-dimensional fiber grating sensor |
| CN104764438A (en) * | 2015-04-23 | 2015-07-08 | 山东大学 | Inclinometer sensor capable of identifying circumferential direction based on fiber bragg grating |
| CN105115440A (en) * | 2015-08-19 | 2015-12-02 | 华中科技大学 | Partial displacement measurement method based on fiber grating sensor |
| CN106247965A (en) * | 2016-07-15 | 2016-12-21 | 东南大学 | Tunnel surrounding monitoring method based on multifunctional intellectual anchor pole |
Non-Patent Citations (2)
| Title |
|---|
| 中国石油管道公司: "《油气管道安全预警与泄漏检测技术》", 31 July 2010, 石油工业出版社 * |
| 古德生: "《现代金属矿床开采科学技术》", 30 December 2006, 冶金工业出版社 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860824B (en) * | 2017-10-23 | 2019-10-01 | 北京航空航天大学 | Visit anti-integrated slope anchorage structure and detection method |
| CN107860824A (en) * | 2017-10-23 | 2018-03-30 | 北京航空航天大学 | Visit anti-integral slope anchorage structure and detection method |
| CN108180841A (en) * | 2018-01-08 | 2018-06-19 | 河北工业大学 | A kind of landslide internal displacement monitoring method based on fiber grating |
| CN108180841B (en) * | 2018-01-08 | 2019-10-15 | 河北工业大学 | A kind of landslide internal displacement monitoring method based on fiber grating |
| CN109176572A (en) * | 2018-10-22 | 2019-01-11 | 山东大学 | A kind of sliding detection probe and working method for robot finger tip |
| CN111812290B (en) * | 2020-07-17 | 2023-04-07 | 山东建筑大学 | Water pollution monitoring biosensor, monitoring system and monitoring method |
| CN111812290A (en) * | 2020-07-17 | 2020-10-23 | 山东建筑大学 | Water pollution monitoring biosensor, monitoring system and monitoring method |
| CN112504311A (en) * | 2020-12-14 | 2021-03-16 | 广州广电计量检测股份有限公司 | Reflection type fiber grating system and demodulation calibration device |
| CN112880581A (en) * | 2021-01-15 | 2021-06-01 | 潍柴动力股份有限公司 | Cylinder sleeve deformation amount measuring method and device |
| CN113514001A (en) * | 2021-05-10 | 2021-10-19 | 上海电力大学 | Iron tower strain monitoring rod piece |
| CN114322819A (en) * | 2022-03-15 | 2022-04-12 | 中国科学院武汉岩土力学研究所 | Fiber grating sensor, strain monitoring method and strain monitoring system for deep roadway surrounding rock |
| CN114322819B (en) * | 2022-03-15 | 2022-06-10 | 中国科学院武汉岩土力学研究所 | Fiber grating sensor, strain monitoring method and strain monitoring system for deep roadway surrounding rock |
| US11781926B1 (en) | 2022-03-15 | 2023-10-10 | Institute Of Rock And Soil Mechanics, Chinese Academy Of Sciences | Fiber grating sensor, strain monitoring method and system for a surrounding rock of a deep roadway |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106840013A (en) | Sliding monitoring sensor and Slope Sliding strain monitoring system | |
| CN103398801B (en) | A kind of optical fiber grating temperature measurement mechanism and measuring method | |
| CN106595776B (en) | A kind of more physical quantity sensor-based systems of distribution type fiber-optic and method | |
| CN103542925B (en) | Quasi-distributed optical vibrating sensing device | |
| US8616069B2 (en) | Fiber optic sensor based on spiral structure | |
| CN104697558B (en) | Distributed optical fiber multi-parameter sensing measurement system | |
| CN203404621U (en) | Pipeline system with functions of sensing and communication | |
| CN200962030Y (en) | Non enhanced optical fiber grating reinforcing steel bar device | |
| CN101969344B (en) | Fiber photoelastic effect based larger-area sound monitoring system | |
| CN103674083A (en) | High-speed particle impact test system | |
| CN102322879B (en) | Continuous optical wavelength division multiplexing long-distance distributed disturbance positioning device and method | |
| CN103076070A (en) | Ice coating detection device for cable | |
| CN102109396B (en) | On-line monitoring device for real-time stress of welding seam on buried pipeline based on optical fiber grating | |
| CN104330180A (en) | Fiber temperature sensor, fiber thereof and fire alarming device using sensor | |
| JP5354497B2 (en) | Distributed fiber optic pressure sensor system | |
| CN201521291U (en) | Underground distributed temperature sensor | |
| CN103177531A (en) | Monitoring system for debris flow disasters along railway tracks | |
| CN202690034U (en) | Optical fiber monitoring system for underground temperature and pressure | |
| CN207650940U (en) | A kind of warning band based on built-in fiber | |
| CN206192371U (en) | A on -line monitoring system for transmission cable based on optical fiber sensing | |
| CN101936792A (en) | Fibre bragg grating negative pressure sensor for mine | |
| CN102981230A (en) | High-sensitivity wide-range stress-strain sensing optical cable and monitoring method thereof | |
| CN205483422U (en) | Oil leak detection device based on fiber grating | |
| CN215262041U (en) | Sensing optical cable | |
| CN100397034C (en) | Monitor device for anchorage cable long term working state and its method |
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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170613 |
|
| RJ01 | Rejection of invention patent application after publication |