A distributed fiber optic temperature measurement and calibration device

Abstract

This invention discloses a distributed optical fiber temperature measurement and calibration device, comprising a housing, a cover, an optical fiber body, and a temperature measurement and calibration module. The cover is hinged and rotated at the top of the housing, located at an opening. Inside the housing, a wireframe assembly for supporting and positioning the optical fiber body is fixedly installed. The temperature measurement and calibration module is fixedly mounted on the wireframe assembly. The wireframe assembly includes a wireframe body and an optical fiber slot. This invention effectively solves the problem of low calibration accuracy caused by the small coiling radius and high micro-bending loss of the optical fiber body in existing devices through the rational design of the wireframe assembly. The annular wireframe body increases the coiling radius of the optical fiber body, and the spacers, combined with the spacers, support the optical fiber body to form gaps, reducing bending stress and friction loss. Through holes and slots ensure airflow, further reducing micro-bending loss and improving signal transmission stability. The side heat dissipation assembly achieves forced heat dissipation through a cooling fan and an airflow guide shroud.

Description

Technical Field

[0001] This invention relates to the field of optical fiber temperature measurement and verification devices, and in particular to a distributed optical fiber temperature measurement and verification device. Background Technology

[0002] Distributed fiber optic temperature measurement technology, with its advantages of continuous distributed monitoring, resistance to electromagnetic interference, and long-distance transmission, has been widely used in fields such as oil and gas pipelines, power cables, and tunnel fire early warning. To ensure the accuracy of the temperature measurement system, distributed fiber optic temperature measurement calibration devices (or calibration systems) are often equipped on engineering sites. These devices typically integrate a standard temperature source, a data acquisition unit, and a section of reference fiber with known temperature characteristics. By precisely controlling and measuring the ambient temperature of the reference fiber, the demodulation accuracy of the distributed temperature measurement host can be calibrated and verified on-site. To meet the requirements of integration and installation in specific locations, existing calibration devices mostly adopt a box-type structure, compactly arranging the temperature measurement module, control circuit, and fiber optic storage components in the same enclosed housing. The reference fiber is usually wound in a multi-layer small-diameter coil in a small reel or small winding frame inside the housing to achieve the storage of a long fiber within a limited volume, thereby covering the multi-point calibration requirements from room temperature to high temperature.

[0003] However, the aforementioned compact design leads to significant mechanical problems. Specifically, to ensure the overall lightweight and portability of the enclosure, the radial dimension of the internal fiber storage device is often limited, resulting in a small coiling diameter. This forces the fiber to withstand continuous mechanical bending stress when coiled into a loop. From the perspective of optical waveguide mechanics, when the actual bending radius of the fiber is less than its critical allowable value, the refractive index distribution in the bending region will be distorted. Some of the transmission mode field energy will couple from the fiber core to the cladding and dissipate rapidly, resulting in significant microbending loss. This loss not only weakens the overall optical power of the backscattered Raman signal but also introduces a nonlinear attenuation coefficient that varies with the bending state due to its wavelength dependence. In the distributed temperature demodulation algorithm, the signal-to-noise ratio of the Raman scattering signal decreases due to microbending loss, causing a systematic deviation in the ratio of light intensity between the reference channel and the measurement channel during temperature demodulation. Ultimately, this severely reduces the calibration device's ability to calibrate the absolute accuracy and repeatability of the temperature measurement host and may even mask the actual temperature anomaly characteristics in the actual sensing link.

[0004] Therefore, how to provide a distributed optical fiber temperature measurement and verification device is a problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0005] One objective of this invention is to provide a distributed optical fiber temperature measurement and verification device, which solves the problems mentioned in the background art.

[0006] According to an embodiment of the present invention, a distributed optical fiber temperature measurement and calibration device includes a housing, a housing cover, an optical fiber body, and a temperature measurement and calibration module. The housing cover is hinged and rotatably mounted on the top of the housing at an opening. A wire frame assembly for supporting and positioning the optical fiber body is fixedly installed inside the housing. The temperature measurement and calibration module is fixedly mounted on the wire frame assembly. The wire frame assembly includes a wire frame body and an optical fiber channel. The optical fiber channel is annularly opened on the side of the wire frame body, and the optical fiber body is movably wound inside the optical fiber channel.

[0007] The wire frame body is arranged in a ring shape and surrounds the outside of the temperature measurement and verification module.

[0008] The wireframe assembly also includes an installation component, which includes an installation ring, a side limiting rod, an inner guide rod, and a mounting bracket. The installation ring is fixedly installed on the bottom of the inner wall of the housing by fixing screws. The side limiting rod is fixedly installed on the top of the installation ring near the outermost position. The inner guide rod is fixedly installed on the top of the side limiting rod near the innermost position. An inner guide groove is opened on the inner side of the wireframe body corresponding to the inner guide rod. The wireframe body is movably installed on the top of the installation ring, and the inner guide rod is movably connected inside the inner guide groove. The side limiting rod fits against the outer side of the wireframe body to limit the optical fiber body inside the optical fiber slot. The mounting bracket is fixedly installed on the inner side of the installation ring. The temperature measurement and verification module is fixedly installed on the top of the mounting bracket by fixing bolts, and the temperature measurement and verification module is located at the center of the wireframe body.

[0009] The wireframe assembly also includes through holes, which are formed on the inner wall of the fiber optic cable tray and penetrate the wireframe body.

[0010] The wire frame assembly also includes a gasket, which is fixedly installed on the inner wall of the fiber optic cable tray to support the fiber body and create a gap between it and the fiber optic cable tray. The inner side of the gasket has a through groove for air circulation, and the side of the wire frame body also has a spacer groove. The interface end of the fiber optic cable tray passes through the spacer groove and is fixedly connected to the interface of the temperature measurement and calibration module.

[0011] The bottom of the wire frame body is rotatably mounted with a wire clamp assembly for positioning the energized wires. The wire clamp assembly includes a mounting plate, a rotating shaft, a wire clamp plate, and a wire groove. The mounting plate is fixedly mounted to the bottom of the wire frame body by mounting bolts. The rotating shaft is fixedly mounted to the bottom of the mounting plate. The wire clamp plate is rotatably mounted to the bottom end of the rotating shaft. The wire groove is opened at the bottom of the wire clamp plate with its opening facing downwards.

[0012] The inner wall of the enclosure is provided with side heat dissipation components for the temperature measurement and verification module. The two sets of side heat dissipation components are arranged symmetrically. Each set of side heat dissipation components includes a movable heat dissipation shroud and an airflow guide shroud. One end of the airflow guide shroud is fixedly installed on the inner side of the enclosure and extends to the outside of the enclosure. The other end of the airflow guide shroud passes through the bottom of the mounting ring and extends upward to the heat dissipation hole of the temperature measurement and verification module. The movable heat dissipation shroud is movably sleeved on the end of the airflow guide shroud near the temperature measurement and verification module. The movable heat dissipation shroud is in contact with the surface of the temperature measurement and verification module and completely covers the heat dissipation hole.

[0013] The side heat dissipation assembly also includes a side ear, a positioning rod, and a positioning spring. The side ear is fixedly installed on the side of the airflow guide cover near the movable heat dissipation cover. The positioning rod is fixedly installed on the movable heat dissipation cover on the side away from the temperature measurement and calibration module. The side ear is movably sleeved on the surface of the positioning rod, and the positioning spring is movably sleeved on the surface of the positioning rod located between the side ear and the movable heat dissipation cover.

[0014] A filter screen is fixedly installed on the side of the housing at the air inlet corresponding to the airflow guide hood. A cooling fan is fixedly installed on the inner wall of a set of airflow guide hoods near the filter screen at the air inlet. After air enters a set of side heat dissipation components, it passes through the interior of the temperature measurement and verification module and carries the heat to another set of side heat dissipation components, which is then discharged through the cooling fan.

[0015] The beneficial effects of this invention are:

[0016] This invention effectively solves the problem of low calibration accuracy caused by the small coiling radius and high micro-bending loss of the optical fiber in existing devices through the rational design of the wire frame assembly. The annular wire frame assembly increases the coiling radius of the optical fiber, and the spacers support the optical fiber to form gaps, reducing bending stress and friction loss. Through holes and slots ensure air circulation, further reducing micro-bending loss and improving signal transmission stability. The side heat dissipation assembly achieves forced heat dissipation through the cooperation of heat dissipation fans and airflow guide covers. The movable heat dissipation cover is tightly attached to the temperature measurement and calibration module under the action of positioning springs to avoid high temperature affecting calibration accuracy. The wire clamp assembly can position the wires to prevent entanglement from interfering with the operation of the device. The overall structure is compact and lightweight, and the wire frame assembly can be flexibly disassembled and assembled, facilitating optical fiber maintenance and replacement. It is compatible with different lengths of optical fibers and temperature measurement modules, and can be widely used in the field calibration of various distributed optical fiber temperature measurement systems, significantly reducing engineering calibration costs. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a schematic diagram of the overall three-dimensional structure of a distributed optical fiber temperature measurement and verification device proposed in this invention.

[0019] Figure 2 This is a three-dimensional cross-sectional structural diagram of the enclosure and side heat dissipation components in a distributed optical fiber temperature measurement and verification device proposed in this invention.

[0020] Figure 3 In the distributed optical fiber temperature measurement and verification device proposed in this invention Figure 2 A magnified structural diagram of point A in the middle.

[0021] Figure 4 This is a three-dimensional structural diagram of the wire frame assembly in a distributed optical fiber temperature measurement and verification device proposed in this invention.

[0022] Figure 5 This is a three-dimensional structural diagram of the wire frame assembly in the disassembled state of a distributed optical fiber temperature measurement and verification device proposed in this invention.

[0023] Figure 6 This is a three-dimensional structural diagram of the side heat dissipation component and the temperature measurement and verification module in a distributed optical fiber temperature measurement and verification device proposed in this invention.

[0024] Figure 7 This is a three-dimensional structural diagram of the wire clamp assembly in a distributed optical fiber temperature measurement and verification device proposed in this invention.

[0025] The attached diagram shows: 1. Cabinet; 2. Cabinet cover; 3. Temperature measurement and calibration module; 4. Cable tray assembly; 5. Fiber optic cable body; 6. Cable clamp assembly; 7. Mounting assembly; 8. Cable tray body; 9. Through hole; 10. Gasket; 11. Fiber optic cable tray; 12. Through slot; 13. Spacing slot; 14. Mounting ring; 15. Side limiting rod; 16. Inner guide rod; 17. Inner guide slot; 18. Mounting bracket; 19. Side heat dissipation assembly; 20. Movable heat dissipation cover; 21. Airflow guide cover; 22. Side ear; 23. Positioning rod; 24. Positioning spring; 25. Cooling fan; 26. Cable clamp plate; 27. Cable tray. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the invention, and therefore only show the components relevant to the invention.

[0027] Example 1

[0028] refer to Figures 1-7In this embodiment, the device includes a housing 1, a cover 2, an optical fiber body 5, and a temperature measurement and verification module 3. The cover 2 is hinged and rotated on the top of the housing 1 at the opening. Inside the housing 1, a wire frame assembly 4 for supporting and positioning the optical fiber body 5 is fixedly installed. The temperature measurement and verification module 3 is fixedly installed on the wire frame assembly 4. The wire frame assembly 4 includes a wire frame body 8 and an optical fiber channel 11. The optical fiber channel 11 is annularly opened on the side of the wire frame body 8. The optical fiber body 5 is movably wound inside the optical fiber channel 11. The wire frame body 8 is annularly arranged and surrounds the outside of the temperature measurement and verification module 3.

[0029] The wire frame assembly 4 also includes a mounting assembly 7, which includes a mounting ring 14, a side limiting rod 15, an inner guide rod 16, and a mounting bracket 18. The mounting ring 14 is fixedly installed on the bottom of the inner wall of the housing 1 by fixing screws. The side limiting rod 15 is fixedly installed on the top of the mounting ring 14 near the outermost point. The inner guide rod 16 is fixedly installed on the top of the side limiting rod 15 near the innermost point. An inner guide groove 17 is provided on the inner side of the wire frame body 8 corresponding to the inner guide rod 16. The wire frame body 8 is movably mounted on the mounting bracket 18. The top of the ring 14 and the inner guide rod 16 are movably connected inside the inner guide groove 17. The side limiting rod 15 fits against the outside of the wire frame body 8 to limit the optical fiber body 5 inside the optical fiber groove 11. The mounting bracket 18 is fixedly installed inside the mounting ring 14. The temperature measurement and verification module 3 is fixedly installed on the top of the mounting bracket 18 by fixing bolts. The temperature measurement and verification module 3 is located at the ring center of the wire frame body 8. The wire frame assembly 4 also includes a through hole 9, which is opened on the inner wall of the optical fiber groove 11 and penetrates the wire frame body 8.

[0030] In specific implementation, the ring frame body 8 surrounds the temperature measurement and verification module 3, significantly increasing the winding radius of the optical fiber body 5, effectively reducing the bending stress of the optical fiber, avoiding micro-bending loss, and thus ensuring the stability of the Raman scattering signal. The mounting ring 14 achieves a stable connection between the frame assembly 4 and the housing 1. The inner guide rod 16 cooperates with the inner guide groove 17 to facilitate the up-and-down movement and disassembly of the frame body 8, and to facilitate the winding and maintenance of the optical fiber body 5. The side limiting rod 15 can effectively prevent the optical fiber body 5 from falling out of the optical fiber groove 11, ensuring the stability of the device operation. The through hole 9 penetrates the frame body 8, which can realize the air circulation inside and outside the optical fiber groove 11, reduce the loss caused by heat accumulation in the optical fiber body 5, and at the same time assist in heat dissipation. It should be noted that there is damping between the inner guide rod 16 and the inner guide groove 17, so that the frame body 8 can only move and stop at any position because the damping resistance is greater than the weight of the frame body 8 and the optical fiber body 5, and can only move under the push of external force.

[0031] Example 2

[0032] refer to Figures 1-7In this embodiment, the wire frame assembly 4 also includes a gasket 10. The gasket 10 is fixedly installed on the inner wall of the optical fiber channel 11 to support the optical fiber body 5 and to create a gap between it and the optical fiber channel 11. A through groove 12 for air circulation is opened on the inner side of the gasket 10. A spacer groove 13 is also opened on the side of the wire frame body 8. The interface end of the optical fiber channel 11 passes through the spacer groove 13 and is fixedly connected to the interface of the temperature measurement and verification module 3.

[0033] In specific implementation, the gasket 10 separates the optical fiber body 5 from the inner wall of the optical fiber groove 11 to form a gap, reducing frictional loss between the optical fiber and the groove, while further increasing the bending radius of the optical fiber, reducing micro-bending loss, and ensuring signal transmission quality; the through groove 12 cooperates with the through hole 9 to further enhance air circulation in the optical fiber groove 11, dissipating the heat generated when the optical fiber is working in time, and avoiding excessive temperature from affecting the optical fiber transmission characteristics; the spacer 13 provides clearance space for the connection between the optical fiber body 5 and the temperature measurement and verification module 3, avoiding bending at the optical fiber interface, ensuring connection stability, and facilitating wiring operations.

[0034] Example 3

[0035] refer to Figures 1-7 In this embodiment, a wire clamp assembly 6 for positioning energized wires is rotatably mounted on the bottom of the wire frame body 8. The wire clamp assembly 6 includes a mounting plate, a rotating shaft, a wire clamp plate 26, and a wire groove 27. The mounting plate is fixedly mounted on the bottom of the wire frame body 8 by mounting bolts, the rotating shaft is fixedly mounted on the bottom of the mounting plate, the wire clamp plate 26 is rotatably mounted on the bottom end of the rotating shaft, and the wire groove 27 is opened at the bottom of the wire clamp plate 26 with the opening facing downward.

[0036] In practice, the wire trough 27 can store and position the power-carrying wires of the device, avoiding messy tangling of the wires and preventing the wires from interfering with the signal transmission of the optical fiber body 5 or affecting the operation of the temperature measurement and verification module 3; the rotating shaft can drive the wire clamp plate 26 to rotate flexibly, making it easy to adjust the angle according to the wire route and adapt to different wiring requirements; the mounting plate is fixed by mounting bolts, which facilitates the disassembly and maintenance of the wire clamp assembly 6. The overall structure is simple and highly practical.

[0037] Example 4

[0038] refer to Figures 1-7In this embodiment, side heat dissipation assemblies 19 for dissipating heat from the temperature measurement and verification module 3 are provided on both sides of the inner wall of the housing 1. The two sets of side heat dissipation assemblies 19 are symmetrically arranged. Each set of side heat dissipation assemblies 19 includes a movable heat dissipation shroud 20 and an airflow guide shroud 21. One end of the airflow guide shroud 21 is fixedly installed on the inner side of the housing 1 and extends to the outside of the housing 1. The other end of the airflow guide shroud 21 passes through the bottom of the mounting ring 14 and extends upward to the heat dissipation hole of the temperature measurement and verification module 3. The movable heat dissipation shroud 20 is movably sleeved on the airflow guide shroud 21 near the temperature measurement and verification module. At one end of 3, the movable heat sink 20 is in contact with the surface of the temperature measurement and verification module 3, completely covering the heat dissipation holes. The side heat dissipation assembly 19 also includes a side ear 22, a positioning rod 23 and a positioning spring 24. The side ear 22 is fixedly installed on the side of the airflow guide cover 21 near the movable heat sink 20. The positioning rod 23 is fixedly installed on the side of the movable heat sink 20 away from the temperature measurement and verification module 3. The side ear 22 is movably sleeved on the surface of the positioning rod 23. The positioning spring 24 is movably sleeved on the surface of the positioning rod 23 between the side ear 22 and the movable heat sink 20.

[0039] In practice, the airflow guide cover 21 can accurately guide the airflow through the heat dissipation holes of the temperature measurement and calibration module 3 to ensure targeted heat dissipation; the movable heat dissipation cover 20 can completely cover the heat dissipation holes to prevent airflow leakage and improve heat dissipation efficiency; the positioning spring 24 pushes the movable heat dissipation cover 20 to fit tightly against the temperature measurement and calibration module 3 through elastic force, adapting to temperature measurement modules of different sizes while ensuring a sealing effect; the side ear 22 cooperates with the positioning rod 23 to limit the movement direction of the movable heat dissipation cover 20 to prevent it from deviating, ensuring that the heat dissipation cover and the heat dissipation holes are accurately connected and ensuring stable heat dissipation.

[0040] Example 5

[0041] refer to Figures 1-7 In this embodiment, a filter screen is fixedly installed on the side of the housing 1 at the air inlet corresponding to the air outlet of the airflow guide hood 21. A cooling fan 25 is fixedly installed on the inner wall of a set of airflow guide hoods 21 near the air outlet filter screen. After air enters a set of side heat dissipation components 19, it passes through the interior of the temperature measurement and verification module 3 and carries the heat to another set of side heat dissipation components 19, which is then discharged through the cooling fan 25.

[0042] In practice, the filter screen can filter dust and impurities in the outside air, preventing dust from entering the housing 1 and adhering to the surface of the temperature measurement and calibration module 3 and the optical fiber body 5, thus preventing it from affecting the working accuracy and service life of the device; the cooling fan 25 provides forced airflow power, forming a closed-loop heat dissipation channel of "intake-heat absorption-exhaust", which quickly removes the heat generated by the temperature measurement and calibration module 3 during operation, preventing the module performance from degrading due to high temperature, thereby ensuring the stability of calibration accuracy and adapting to the needs of long-term continuous operation.

[0043] The working principle of this invention is:

[0044] In use, first open the cover 2, and then movably install the cable tray body 8 on top of the mounting ring 14 through the inner guide groove 17 and the inner guide rod 16. The side limiting rod 15 is attached to the outside of the cable tray body 8 to achieve limitation. Then, move the cable tray body 8 upward to move it upward, causing the fiber optic cable tray 11 to move upward and separate from the side limiting rod 15. Next, wind the fiber optic body 5 inside the fiber optic cable tray 11. The gasket 10 supports the fiber optic body 5 to form a gap, reducing bending stress and friction, avoiding micro-bending loss, thereby ensuring the stability of fiber optic signal transmission, improving calibration accuracy, and increasing air circulation to avoid heat accumulation. Then, move the cable tray body 8 downward so that its bottom end is attached to the top of the mounting ring 14. At this time, the side limiting rod 15 is located outside the fiber optic cable tray 11. Figure 2 and Figure 4 As shown, the optical fiber body 5 is positioned; the interface end of the optical fiber body 5 passes through the spacer slot 13 and is fixedly connected to the interface of the temperature measurement and verification module 3. The energized wire is placed in the wire groove 27 and positioned by the wire clamp 26 to prevent the wire from tangling and interfering with the operation of the device, thereby ensuring the stability of the device operation. The cover 2 is closed, the device is started, and the temperature measurement and verification module 3 starts to work. The cooling fan 25 in the side heat dissipation assembly 19 starts, and the outside air enters the airflow guide hood 21 through the filter screen, flows through the movable heat dissipation hood 20 to the heat dissipation holes of the temperature measurement and verification module 3, absorbs heat, and is discharged from another set of airflow guide hoods 21 to achieve efficient heat dissipation and avoid high temperature affecting the verification accuracy. The movable heat sink 20 has a sealing cover on its side. The positioning spring 24 ensures that the sealing cover on the movable heat sink 20 fits tightly against the temperature measuring module, ensuring that there are no dead corners in heat dissipation. The through hole 9 and through slot 12 ensure air circulation in the fiber optic cable tray 11, further reducing fiber loss. The cable frame body 8 can rotate flexibly, which is convenient for subsequent fiber maintenance and replacement. This invention effectively solves the problems of high fiber micro-bending loss and low calibration accuracy in existing devices. Another effect not mentioned is that the overall structure is compact and lightweight, and the disassembly and maintenance are convenient. It is compatible with different lengths of optical fibers and temperature measuring modules, and can be widely used in the field calibration scenarios of various distributed optical fiber temperature measuring systems, which greatly reduces the engineering calibration cost.

[0045] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. A distributed optical fiber temperature measurement and verification device, characterized in that, The package includes a housing (1), a cover (2), an optical fiber body (5), and a temperature measurement and verification module (3). The cover (2) is mounted on the top of the housing (1) at the opening via a hinge. A wire frame assembly (4) for supporting and positioning the optical fiber body (5) is fixedly installed inside the housing (1). The temperature measurement and verification module (3) is fixedly installed on the wire frame assembly (4). The wireframe assembly (4) includes a wireframe body (8) and an optical fiber channel (11). The optical fiber channel (11) is opened in a ring on the side of the wireframe body (8), and the optical fiber body (5) is movably wound inside the optical fiber channel (11).

2. The distributed optical fiber temperature measurement and verification device according to claim 1, characterized in that, The wire frame body (8) is arranged in a ring shape and surrounds the outside of the temperature measurement and verification module (3).

3. The distributed optical fiber temperature measurement and verification device according to claim 2, characterized in that, The wire frame assembly (4) also includes a mounting assembly (7), which includes a mounting ring (14), a side limiting rod (15), an inner guide rod (16), and a mounting bracket (18). The mounting ring (14) is fixedly installed on the bottom of the inner wall of the housing (1) by fixing screws. The side limiting rod (15) is fixedly installed on the top of the mounting ring (14) near the outermost point. The inner guide rod (16) is fixedly installed on the top of the side limiting rod (15) near the innermost point. The inner side of the wire frame body (8) is provided with a corresponding inner guide rod (16). The inner guide groove (17) and the wire frame body (8) are movably installed on the top of the mounting ring (14), and the inner guide rod (16) is movably connected inside the inner guide groove (17). The side limiting rod (15) fits against the outside of the wire frame body (8) to limit the fiber body (5) inside the fiber optic groove (11). The mounting bracket (18) is fixedly installed on the inside of the mounting ring (14). The temperature measurement and verification module (3) is fixedly installed on the top of the mounting bracket (18) by fixing bolts, and the temperature measurement and verification module (3) is located at the center of the wire frame body (8).

4. The distributed optical fiber temperature measurement and verification device according to claim 3, characterized in that, The wire frame assembly (4) also includes a through hole (9), which is opened on the inner wall of the fiber optic cable groove (11) and penetrates the wire frame body (8).

5. The distributed optical fiber temperature measurement and verification device according to claim 4, characterized in that, The wire frame assembly (4) also includes a gasket (10). The gasket (10) is fixedly installed on the inner wall of the fiber optic cable tray (11) to support the fiber optic body (5) so that there is a gap between it and the fiber optic cable tray (11). A through groove (12) for air circulation is opened on the inner side of the gasket (10). A spacer groove (13) is also opened on the side of the wire frame body (8). The interface end of the fiber optic cable tray (11) passes through the spacer groove (13) and is fixedly connected to the interface of the temperature measurement and verification module (3).

6. The distributed optical fiber temperature measurement and verification device according to claim 5, characterized in that, The bottom of the wire frame body (8) is rotatably mounted with a wire clamp assembly (6) for positioning the energized wire. The wire clamp assembly (6) includes a mounting plate, a rotating shaft, a wire clamp plate (26), and a wire groove (27). The mounting plate is fixedly mounted on the bottom of the wire frame body (8) by mounting bolts. The rotating shaft is fixedly mounted on the bottom of the mounting plate. The wire clamp plate (26) is rotatably mounted on the bottom end of the rotating shaft. The wire groove (27) is opened at the bottom of the wire clamp plate (26) with the opening facing downward.

7. A distributed optical fiber temperature measurement and verification device according to claim 6, characterized in that, The inner walls of the housing (1) are provided with side heat dissipation components (19) for heat dissipation of the temperature measurement and verification module (3). The two sets of side heat dissipation components (19) are symmetrically arranged. Each set of side heat dissipation components (19) includes a movable heat dissipation hood (20) and an airflow guide hood (21). One end of the airflow guide hood (21) is fixedly installed on the inner side of the housing (1) and extends to the outside of the housing (1). The other end of the airflow guide hood (21) passes through the bottom of the mounting ring (14) and extends upward to the heat dissipation hole of the temperature measurement and verification module (3). The movable heat dissipation hood (20) is movably sleeved on the end of the airflow guide hood (21) near the temperature measurement and verification module (3). The movable heat dissipation hood (20) is in contact with the surface of the temperature measurement and verification module (3) and completely covers the heat dissipation hole.

8. The distributed optical fiber temperature measurement and verification device according to claim 7, characterized in that, The side heat dissipation assembly (19) also includes a side ear (22), a positioning rod (23) and a positioning spring (24). The side ear (22) is fixedly installed on the side of the airflow guide cover (21) near the movable heat dissipation cover (20). The positioning rod (23) is fixedly installed on the side of the movable heat dissipation cover (20) away from the temperature measurement and verification module (3). The side ear (22) is movably sleeved on the surface of the positioning rod (23). The positioning spring (24) is movably sleeved on the surface of the positioning rod (23) between the side ear (22) and the movable heat dissipation cover (20).

9. A distributed optical fiber temperature measurement and verification device according to claim 8, characterized in that, A filter screen is fixedly installed on the side of the housing (1) at the air inlet of the airflow guide hood (21). A cooling fan (25) is fixedly installed on the inner wall of the airflow guide hood (21) near the air inlet of the filter screen. After the air enters the side heat dissipation component (19), it passes through the interior of the temperature measurement and verification module (3) and carries the heat to another side heat dissipation component (19) and is discharged through the cooling fan (25).

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