Synchronous multichannel fiber bragg grating monitoring module

Abstract

The utility model relates to the technical field of fiber bragg grating monitoring modules, in particular to a synchronous multichannel fiber bragg grating monitoring module, which comprises a fiber bragg grating monitoring module and straight plates. The multiple straight plates are located below front interfaces of the fiber bragg grating monitoring module, the top of the fiber bragg grating monitoring module is connected with multiple control structures, the bolts rotate downwards through the sleeve plate, the bottoms of the bolts abut against the tops of the straight plates, the position of the sleeve plate is fixed, and then the position of an arc plate at the front end of the top of the sleeve plate is adjusted. At the moment, the lower arc plate is located behind the upper arc plate, then the connecting end of the cable is connected with the front interface of the fiber bragg grating monitoring module in an inserted mode, then the outer wall of the cable is inserted into the inner wall of the arc plate, due to the fact that the positions of the upper arc plate and the lower arc plate are different, the cable cannot be gathered and wound when falling, and normal maintenance of the synchronous multi-channel fiber bragg grating monitoring module is facilitated. And the use difficulty is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of synchronous multi-channel optical fiber grating monitoring modules, in particular to a synchronous multi-channel optical fiber grating monitoring module. Background Art

[0002] The fiber grating monitoring module has a series of advantages such as small size, light weight, anti-electromagnetic interference, and large-scale networking to achieve real-time distributed measurement.

[0003] For example, a synchronous multi-channel fiber grating monitoring and demodulation system with the authorization announcement number "CN207280478U" uses a switchable optical fiber delay line to enable optical signals of different channels to reach the fiber grating sensor at the same time and obtain reflected light signals synchronously. In the process of transmitting the reflected light signal to the photoelectric A / D demodulation module, it will pass through the switchable optical fiber delay line of different lengths again, so that there is a certain difference in the time when the reflected light signals of different channels reach the photoelectric A / D demodulation module. The monitoring signal of the fiber grating sensor of each channel will correspond to a signal timing, which can realize the synchronous measurement of the multi-channel fiber grating sensor. However, in order to ensure the use of multiple channels in the use of the synchronous multi-channel fiber grating monitoring module, multiple cables need to be plugged in, and the cables will fall after installation, which will cause multiple cables to gather together, easily causing multiple cables to get entangled. The cables need to be plugged in as a whole during maintenance, which affects the normal maintenance of the synchronous multi-channel fiber grating monitoring module and increases the difficulty of use. Utility Model Content

[0004] The utility model aims to solve the problem of affecting the normal maintenance of a synchronous multi-channel fiber Bragg grating monitoring module and increasing the difficulty of use, and proposes a synchronous multi-channel fiber Bragg grating monitoring module.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A synchronous multi-channel fiber grating monitoring module is designed, comprising a fiber grating monitoring module and a straight plate, the front face of the fiber grating monitoring module is fixedly connected to the rear end faces of a plurality of straight plates, the plurality of straight plates are respectively located below the front interface of the fiber grating monitoring module, the top of the fiber grating monitoring module is connected to a plurality of control structures, the top of the fiber grating monitoring module is fixedly connected to a square frame, the square frame is located outside the top heat dissipation port of the fiber grating monitoring module, and the front face of the fiber grating monitoring module is connected to a plurality of supporting structures.

[0007] Preferably, the support structure comprises a sleeve plate and an arc plate, the inner wall of the sleeve plate is slidably engaged with the outer wall of the straight plate, the top front end of the sleeve plate is fixedly connected with the bottom of the arc plate, and the top of the sleeve plate is threadedly connected with bolts.

[0008] Preferably, the bottom of the bolt is tightly pressed against the top of the straight plate.

[0009] Preferably, a mesh plate is inserted into the inner wall of the square frame, and the bottom of the mesh plate fits with the top heat dissipation port of the fiber optic grating monitoring module.

[0010] Preferably, the control structure comprises a curved plate and a cylinder, the bottom of the curved plate is fixedly connected to the top of the fiber optic grating monitoring module, the front of the curved plate is rotatably connected to the rear of the outer wall of the cylinder, and the inner wall of the cylinder is threadedly connected with a screw.

[0011] Preferably, the diameter of the screw rod matches the inner diameter of the top circular opening of the fiber grating monitoring module.

[0012] The utility model proposes a synchronous multi-channel fiber grating monitoring module, which has the following beneficial effects: the bolt located at the bottom in the supporting structure is rotated upward through the lower sleeve plate, so that the bottom of the bolt is separated from the top of the lower straight plate, and then the sleeve plate slides backward on the outer wall of the straight plate, and then the bolt is rotated downward through the sleeve plate, so that the bottom of the bolt is pressed against the top of the straight plate, and the position of the sleeve plate is fixed, and then the arc plate at the front end of the top of the sleeve plate is adjusted. At this time, the lower arc plate is located behind the upper arc plate, and then the cable connection end is plugged into the front interface of the fiber grating monitoring module, and then the outer wall of the cable is inserted into the inner wall of the arc plate. Due to the different positions of the upper and lower arc plates, the cables will not be gathered and entangled when they fall, which is convenient for the normal maintenance of the synchronous multi-channel fiber grating monitoring module and reduces the difficulty of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 for Figure 1 Schematic diagram of the connection relationship between the central straight plate, the sleeve plate and the arc plate;

[0015] Figure 3 for Figure 1 Schematic diagram of the connection relationship between the middle frame and the mesh plate;

[0016] Figure 4 for Figure 1 Schematic diagram of the structure of A.

[0017] In the figure: 1. Fiber Bragg grating monitoring module, 2. Support structure, 201. Bushing, 202. Arc plate, 203. Bolt, 3. Control structure, 301. Curved plate, 302. Cylinder, 303. Screw, 4. Straight plate, 5. Square frame, 6. Mesh plate, 7. Fin plate. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings:

[0019] Embodiment 1:

[0020] See also Figure 1-4 In the present embodiment, a synchronous multi-channel fiber grating monitoring module includes a fiber grating monitoring module 1 and a straight board 4. The front of the fiber grating monitoring module 1 is fixedly connected to the rear end faces of multiple straight boards 4. How to operate and use the fiber grating monitoring module 1 is already a prior art, and no further explanation is given. The model is selected according to usage requirements. Multiple straight boards 4 are respectively located below the front interface of the fiber grating monitoring module 1. Multiple control structures 3 are connected to the top of the fiber grating monitoring module 1. A square frame 5 is fixedly connected to the top of the fiber grating monitoring module 1. The square frame 5 is located outside the top heat dissipation port of the fiber grating monitoring module 1. The front of the fiber grating monitoring module 1 is connected to multiple support structures 2.

[0021] The support structure 2 includes a sleeve plate 201 and an arc plate 202. The inner wall of the sleeve plate 201 is slidably engaged with the outer wall of the straight plate 4. The sleeve plate 201 is subjected to force and slides forward and backward through the outer wall of the straight plate 4. The top front end of the sleeve plate 201 is fixedly connected to the bottom of the arc plate 202. The top of the sleeve plate 201 is threadedly connected with a bolt 203. The bolt 203 can be rotated up and down through the top of the sleeve plate 201 under force, and the bottom of the bolt 203 is tightly pressed against the top of the straight plate 4.

[0022] The bolt 203 at the bottom of the support structure 2 is rotated upward through the lower sleeve 201, so that the bottom of the bolt 203 is separated from the top of the lower straight plate 4, and then the sleeve 201 slides backward on the outer wall of the straight plate 4, and then the bolt 203 is rotated downward through the sleeve 201, so that the bottom of the bolt 203 is pressed against the top of the straight plate 4, and the position of the sleeve 201 is fixed, and then the arc plate 202 at the front end of the top of the sleeve 201 is adjusted. At this time, the lower arc plate 202 is located behind the upper arc plate 202, and then the cable connection end is plugged into the front interface of the fiber optic Bragg grating monitoring module 1, and then the outer wall of the cable is inserted into the inner wall of the arc plate 202. Due to the different positions of the upper and lower arc plates 202, the cables will not be gathered and entangled when they fall, which is convenient for the normal maintenance of the synchronous multi-channel fiber optic Bragg grating monitoring module and reduces the difficulty of use.

[0023] A mesh plate 6 is inserted into the inner wall of the square frame 5. The mesh plate 6 is made of stainless steel and is filled with a PP filter to ensure heat dissipation while preventing dust from entering. The bottom of the mesh plate 6 fits with the top heat dissipation port of the fiber optic Bragg grating monitoring module 1. The control structure 3 includes a curved plate 301 and a cylinder 302. The bottom of the curved plate 301 is fixedly connected to the top of the fiber optic Bragg grating monitoring module 1, and the front of the curved plate 301 is rotatably connected to the rear of the outer wall of the cylinder 302. The cylinder 302 is rotated by the pin shaft on the front of the curved plate 301. The inner wall of the cylinder 302 is threadedly connected with a screw 303, and the diameter of the screw 303 matches the inner diameter of the top circular port of the fiber optic Bragg grating monitoring module 1.

[0024] Working principle:

[0025] Fiber Bragg grating monitoring module installation:

[0026] First, the bolt 203 at the bottom is rotated upward through the lower sleeve 201, so that the bottom of the bolt 203 is separated from the top of the lower straight plate 4, and then the sleeve 201 slides backward on the outer wall of the straight plate 4, and then the bolt 203 is rotated downward through the sleeve 201, so that the bottom of the bolt 203 is pressed against the top of the straight plate 4, and the position of the sleeve 201 is fixed, and then the arc plate 202 at the front end of the top of the sleeve 201 is adjusted. At this time, the lower arc plate 202 is located behind the upper arc plate 202, and then the cable connection end is plugged into the front interface of the fiber optic Bragg grating monitoring module 1, and then the outer wall of the cable is inserted into the inner wall of the arc plate 202. Due to the different positions of the upper and lower arc plates 202, the cables will not be gathered and entangled when falling. After multiple cables are plugged into the fiber optic Bragg grating monitoring module 1, the synchronous multi-channel operation of the fiber optic Bragg grating monitoring module 1 is realized.

[0027] Fiber Bragg grating monitoring modules are placed overlappingly:

[0028] After the fiber grating monitoring module 1 is placed, the cylinder 302 is rotated through the pin shaft on the front side of the curved plate 301, and then the screw 303 is rotated downward through the cylinder 302, so that the bottom of the outer wall of the screw 303 is plugged into the circular opening at the top of the fiber grating monitoring module 1, and then the circular opening at the bottom of the second fiber grating monitoring module 1 is aligned and plugged into the top of the screw 303 to complete the overlapping placement of the fiber grating monitoring modules 1.

[0029] Embodiment 2:

[0030] See also Figure 1-4 : In this embodiment, a synchronous multi-channel fiber grating monitoring module also includes a fin plate 7, and the outer walls of the multiple fin plates 7 are respectively fixed to the left and right sides of the fiber grating monitoring module 1, and the inner sides of the multiple fin plates 7 are in contact with the inner wall structure of the fiber grating monitoring module 1.

[0031] Working principle:

[0032] When the FBG monitoring module 1 is working, the fin plate 7 can remove the heat generated by the internal structure of the FBG monitoring module 1 through its own copper material, and cooperate with the heat dissipation port on the top of the FBG monitoring module 1 to accelerate the heat dissipation.

[0033] Although the present invention has been shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein within the scope of the claims.

Claims

1. A synchronous multi-channel fiber Bragg grating monitoring module, comprising a fiber Bragg grating monitoring module (1) and a straight board (4), Features: The front face of the fiber grating monitoring module (1) is fixedly connected to the rear end faces of a plurality of straight plates (4), the plurality of straight plates (4) are respectively located below the front interface of the fiber grating monitoring module (1), the top of the fiber grating monitoring module (1) is connected to a plurality of control structures (3), the top of the fiber grating monitoring module (1) is fixedly connected to a square frame (5), the square frame (5) is located outside the top heat dissipation port of the fiber grating monitoring module (1), and the front face of the fiber grating monitoring module (1) is connected to a plurality of support structures (2).

2. A synchronous multi-channel fiber Bragg grating monitoring module according to claim 1, Features: The support structure (2) comprises a sleeve plate (201) and an arc plate (202); the inner wall of the sleeve plate (201) is slidably engaged with the outer wall of the straight plate (4); the top front end of the sleeve plate (201) is fixedly connected with the bottom of the arc plate (202); and the top of the sleeve plate (201) is threadedly connected with a bolt (203).

3. A synchronous multi-channel fiber Bragg grating monitoring module according to claim 2, Features: The bottom of the bolt (203) is tightly pressed against the top of the straight plate (4).

4. A synchronous multi-channel fiber Bragg grating monitoring module according to claim 1, Features: A mesh plate (6) is inserted into the inner wall of the square frame (5), and the bottom of the mesh plate (6) fits with the top heat dissipation opening of the optical fiber grating monitoring module (1).

5. The synchronous multi-channel fiber Bragg grating monitoring module according to claim 1, Features: The control structure (3) comprises a curved plate (301) and a cylinder (302), wherein the bottom of the curved plate (301) is fixedly connected to the top of the fiber optic grating monitoring module (1), the front of the curved plate (301) is rotatably connected to the rear of the outer wall of the cylinder (302), and the inner wall of the cylinder (302) is threadedly connected with a screw (303).

6. A synchronous multi-channel fiber Bragg grating monitoring module according to claim 5, Features: The diameter of the screw rod (303) matches the inner diameter of the top circular opening of the fiber optic grating monitoring module (1).

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