CN219265550U - Fiber bragg grating type anchor cable force transducer - Google Patents
Fiber bragg grating type anchor cable force transducer Download PDFInfo
- Publication number
- CN219265550U CN219265550U CN202223414335.7U CN202223414335U CN219265550U CN 219265550 U CN219265550 U CN 219265550U CN 202223414335 U CN202223414335 U CN 202223414335U CN 219265550 U CN219265550 U CN 219265550U
- Authority
- CN
- China
- Prior art keywords
- anchor
- metal cylinder
- sensor
- alloy metal
- elastic alloy
- 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.)
- Active
Links
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/23—Dune restoration or creation; Cliff stabilisation
Landscapes
- Light Guides In General And Applications Therefor (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The utility model discloses a fiber bragg grating type anchor rope force transducer which comprises a device body, wherein the device body comprises a landslide, an inclined support, an I-shaped steel waist beam, a first steel backing plate, an anchor rope sensor, a second steel backing plate and an anchor head, wherein the inclined support is arranged at the right end of the landslide in an inclined manner, the I-shaped steel waist beam is arranged at the top of the inclined support, the first steel backing plate is arranged at the top of the I-shaped steel waist beam, the anchor rope sensor is arranged at the top of the first steel backing plate, and the second steel backing plate is arranged at the top of the anchor rope sensor; the anchor cable sensor comprises an elastic alloy metal cylinder, a protective shell, a sealing ring and an optical cable, wherein the protective shell is arranged outside the elastic alloy metal cylinder, the optical cable is stuck to the outer side of the elastic alloy metal cylinder, and the sealing ring is provided with a group of sealing rings which are symmetrically arranged at the upper end and the lower end of the elastic alloy metal cylinder respectively. The device can enable the anchor cable sensor to work for a long time in special environments such as inflammable and explosive environments, and the like, and has no loss of transmission signals and high data precision.
Description
Technical Field
The utility model relates to the technical field of optical fiber sensors, in particular to an optical fiber grating type anchor cable force transducer.
Background
In civil engineering, anchoring engineering is critical, particularly on steep slopes with strict deformation requirements and unstable engineering parts such as highways, railways and the like, anchor ropes are required to be used for anchoring, stability of the structure is improved, safety is improved, and at the moment, long-term real-time safety monitoring on stress conditions of the anchor ropes is required to be carried out by means of an anchor rope force measuring sensing device, so that safety accidents are prevented.
The existing optical fiber sensor device has the following defects:
the existing anchor cable force sensor generally measures the resistance of the sensor and calculates the force, but the principle is not suitable for working in flammable and explosive environments, can not work for a long time, and can not be operated in a long distance.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a fiber grating type anchor cable force transducer, which solves the problems that the existing anchor cable force transducer is generally in a mode of measuring the resistance of the transducer, and the like, so that the existing anchor cable force transducer is not suitable for working in flammable and explosive environments, the transmission distance of an electric signal is short, the signal is lost, and the measuring precision is poor.
(II) technical scheme
In order to achieve the above purpose, the utility model is realized by the following technical scheme: the optical fiber grating type anchor rope force transducer comprises a device body, wherein the device body comprises a landslide, an inclined support, an I-shaped steel waist beam, a first steel base plate, an anchor rope sensor, a second steel base plate and an anchor head, the inclined support is arranged at the right end of the landslide in an inclined mode, the I-shaped steel waist beam is arranged at the top of the inclined support, the first steel base plate is arranged at the top of the I-shaped steel waist beam, the anchor rope sensor is arranged at the top of the first steel pad, the second steel base plate is arranged at the top of the anchor rope sensor, and the anchor head is arranged at the top of the second steel base plate;
preferably, the anchor cable sensor comprises an elastic alloy metal cylinder, a protective shell, a sealing ring and an optical cable, wherein the protective shell is arranged outside the elastic alloy metal cylinder, the optical cable is stuck to the outer side of the elastic alloy metal cylinder, the sealing ring is provided with a group of sealing rings which are symmetrically arranged at the upper end and the lower end of the elastic alloy metal cylinder respectively, vertical line connectors are arranged on the left side and the right side of the protective shell, and the optical cable is arranged in the vertical line connectors.
Preferably, an anchor hole is formed in the side face of the landslide, the anchor hole is of an inclined structure, and a steel strand is arranged in the anchor hole.
Preferably, the anchor cable sensor is in a cylindrical structure.
(III) beneficial effects
The utility model provides an optical fiber grating type anchor cable force transducer. The beneficial effects are as follows:
the fiber bragg grating type anchor cable force transducer is an intrinsically safe device, does not generate current or spark, can be deployed in flammable and explosive environments such as coal mines and the like, can remotely transmit optical signals, does not generate loss, is extremely high in calculation accuracy, small in size, convenient to install and the like, is capable of being subjected to micro deformation by sticking the fiber bragg grating on a transducer main body, and can be correspondingly changed in certain characteristics of optical fibers, so that the stress magnitude is calculated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present utility model;
fig. 2 is a schematic structural view of the cable sensor of the present utility model.
In the figure, 1, a device body; 2. landslide; 3. an inclined support; 4. i-shaped steel waist beam; 5. a first steel backing plate; 6. an anchor cable sensor; 7. a second steel backing plate; 8. an anchor head; 9. an elastic alloy metal cylinder; 10. a protective shell; 11. a seal ring; 12. a grating; 13. a vertical line joint; 14. an optical cable; 15. an anchor hole; 16. and (5) steel strand wires.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-2, the embodiment of the utility model provides a technical scheme: the fiber bragg grating type anchor rope force transducer comprises a device body 1, wherein the device body 1 comprises a landslide 2, an inclined support 3, an I-shaped steel waist beam 4, a first steel base plate 5, an anchor rope sensor 6, a second steel base plate 7 and an anchor head 8, the inclined support 3 is arranged at the right end of the landslide 2 in an inclined mode, the I-shaped steel waist beam 4 is arranged at the top of the inclined support 3, the first steel base plate 5 is arranged at the top of the I-shaped steel waist beam 4, the anchor rope sensor 6 is arranged at the top of the first steel spacer 5, the second steel base plate 7 is arranged at the top of the anchor rope sensor 6, and the anchor head 8 is arranged at the top of the second steel base plate 7;
the anchor cable sensor 6 comprises an elastic alloy metal cylinder 9, a protective shell 10, a sealing ring 11, a sealing ring 12 and an optical cable 12, wherein the protective shell 10 is arranged outside the elastic alloy metal cylinder 9, the optical cable 12 is stuck to the outer side of the elastic alloy metal cylinder 9, the sealing ring 11 is provided with a group of optical cables and is symmetrically arranged at the upper end and the lower end of the elastic alloy metal cylinder 9 respectively, vertical line connectors 13 are arranged on the left side and the right side of the protective shell 10, optical cables 14 are arranged in the vertical line connectors 13, an optical fiber grating 12 is stuck to the elastic alloy metal cylinder 9 on the main body of the anchor cable sensor 6, the sensor is subjected to micro deformation, certain characteristics of the optical fibers are correspondingly changed, and then the stress is calculated.
The anchor hole 15 has been seted up to landslide 2 side, anchor hole 15 is the slope form structure, be equipped with steel strand wires 16 in the anchor hole 15, anchor hole 15 is in order to be convenient for oblique support 3's installation, and steel strand wires 16 can improve stretch-proofing nature, further improves the stability of device body 1 installation.
The anchor cable sensor 6 is of a cylindrical structure, and the anchor cable sensor 6 is of a cylindrical structure, so that the anchor cable sensor 6 is more sensitive to pressure, the accuracy of data is improved, the damage resistance of the anchor cable sensor 6 can be improved, and the stability of the internal components of the anchor cable sensor 6 is further improved.
Working principle: during operation, the fiber bragg grating 12 is adhered to the high-performance elastic alloy metal cylinder 9, when the elastic alloy metal cylinder 9 receives axial force, the elastic alloy metal cylinder 9 generates micro deformation, the grating 12 adhered to the elastic alloy metal cylinder 9 also deforms, so that certain characteristics of the grating 12 change, the stress of the elastic alloy metal cylinder 9 is calculated through external demodulation equipment, a worker can know the stress as soon as possible to make safety judgment, and the wire harness is convenient and fast to install due to simple structure. The optical signal is transmitted in the optical fiber with little loss, so the measurement accuracy is very high.
The utility model relates to a device body, in particular to a device body; 2. landslide; 3. an inclined support; 4. i-shaped steel waist beam; 5. a first steel backing plate; 6. an anchor cable sensor; 7. a second steel backing plate; 8. an anchor head; 9. an elastic alloy metal cylinder; 10. a protective shell; 11. a seal ring; 12. a grating; 13. a vertical line joint; 14. an optical cable; 15. an anchor hole; 16. the utility model solves the problems that the existing anchor cable force sensor is generally in a mode of measuring the resistance of the sensor and the like, thus being not suitable for working in flammable and explosive environments, the electric signal transmission distance is short, the signal is lost, and the measuring precision is poor.
While the fundamental and principal features of the utility model and advantages of the utility model have been shown and described, it will be apparent to those skilled in the art that the utility model is not limited to the details of the foregoing exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is provided for clarity only, and that the disclosure is not limited to the embodiments described in detail below, and that the embodiments described in the examples may be combined as appropriate to form other embodiments that will be apparent to those skilled in the art.
Claims (3)
1. The utility model provides a fiber bragg grating formula anchor rope force transducer which characterized in that: the device comprises a device body (1), wherein the device body (1) comprises a landslide (2), an inclined support (3), an I-shaped steel waist beam (4), a first steel base plate (5), an anchor rope sensor (6), a second steel base plate (7) and an anchor head (8), the inclined support (3) is arranged at the right end of the landslide (2) in an inclined mode, the I-shaped steel waist beam (4) is arranged at the top of the inclined support (3), the first steel base plate (5) is arranged at the top of the I-shaped steel waist beam (4), the anchor rope sensor (6) is arranged at the top of the first steel base plate (5), the second steel base plate (7) is arranged at the top of the anchor rope sensor (6), and the anchor head (8) is arranged at the top of the second steel base plate (7);
the anchor cable sensor (6) comprises an elastic alloy metal cylinder (9), a protective shell (10), a sealing ring (11), a sealing ring (12) and an optical cable (12), wherein the protective shell (10) is arranged outside the elastic alloy metal cylinder (9), the optical cable (12) is stuck to the outer side of the elastic alloy metal cylinder (9), the sealing ring (11) is provided with a group of symmetrical mode and is respectively arranged at the upper end and the lower end of the elastic alloy metal cylinder (9), vertical line connectors (13) are respectively arranged on the left side and the right side of the protective shell (10), and optical cables (14) are arranged in the vertical line connectors (13).
2. The fiber bragg grating type anchor line load cell according to claim 1, wherein: an anchor hole (15) is formed in the side face of the landslide (2), the anchor hole (15) is of an inclined structure, and a steel strand (16) is arranged in the anchor hole (15).
3. The fiber bragg grating type anchor line load cell according to claim 1, wherein: the anchor cable sensor (6) is of a cylindrical structure.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202223414335.7U CN219265550U (en) | 2022-12-20 | 2022-12-20 | Fiber bragg grating type anchor cable force transducer |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202223414335.7U CN219265550U (en) | 2022-12-20 | 2022-12-20 | Fiber bragg grating type anchor cable force transducer |
Publications (1)
Publication Number | Publication Date |
---|---|
CN219265550U true CN219265550U (en) | 2023-06-27 |
Family
ID=86864692
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202223414335.7U Active CN219265550U (en) | 2022-12-20 | 2022-12-20 | Fiber bragg grating type anchor cable force transducer |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN219265550U (en) |
-
2022
- 2022-12-20 CN CN202223414335.7U patent/CN219265550U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN203259281U (en) | Coal mine downhole optical fiber raster multi-measuring point anchor pole stress measuring device | |
CN106092395B (en) | A kind of device and method that anchor pole power is monitored using equal thickness interference principle | |
CN106523008B (en) | Anchor rod stress measuring, reading and early warning device and use method | |
WO2015058488A1 (en) | Apparatus and method for monitoring mining fiber grating roof separation layer | |
CN102809454A (en) | FBG (Fiber Bragg Grating) force measuring anchor rod and using method | |
CN102720515A (en) | Fiber bragg grating prestress measurement anchor rod and application method thereof | |
CN204080880U (en) | A kind of prior-warning device of monitoring foundation pit deformation | |
CN202866844U (en) | Resistance increasing deformed anchor rod or anchor cable anchoring quality monitoring device | |
CN102839693A (en) | Anchor quality monitoring device for increased resistance deformation anchor bolts/ropes and application method | |
CN103508288A (en) | Fiber bragg grating stretching type device for monitoring tensile force of steel wire rope of mine lifting equipment and method | |
CN103994846A (en) | Device and method for testing surrounding rock stress field distribution | |
CN205443917U (en) | Optical fiber sensing stay rope shock absorption support | |
CN103162880A (en) | Prestressed anchor cable stress monitoring device | |
CN110763380B (en) | One-hole multi-point stress and displacement monitoring system based on fiber bragg grating measurement | |
CN112924061A (en) | Wireless real-time monitoring system and method for non-uniform settlement stress of natural gas pipeline | |
CN219265550U (en) | Fiber bragg grating type anchor cable force transducer | |
CN205352597U (en) | Bridge perpetuity prestressing force detection device | |
CN202693170U (en) | Fiber Bragg grating pre-stressed force-measuring rock bolt | |
CN109915188A (en) | A kind of high-strength surely hinder detachable pushes back half davit and wall rock deformation monitoring method | |
CN211422632U (en) | Distributed temperature real-time monitoring device for oil and gas well | |
CN217681860U (en) | Bidirectional stress sensor and rock burst real-time monitoring system | |
CN217466041U (en) | Mining visual anchor rod stress detection device | |
CN210166057U (en) | Intelligent force-measuring friction pendulum support | |
CN202690096U (en) | Fiber bragg grating force-measuring anchor rod | |
CN201034756Y (en) | Anchorage cable force gauge |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |