A fiber-optic current sensor calibration platform

Abstract

The utility model relates to sensor technical field provides a kind of optical fiber current sensor calibration platform, comprising: bottom, still include: synchronous drive mechanism, set in the top of the bottom. The utility model, by controller control motor start, make its output shaft drive bidirectional screw rod rotate, can make two movable strips synchronous to middle mobile, can synchronous clamping mechanism and limit mechanism move to middle, make external plug and optical fiber current sensor connect, make slide bar along the inside of guide groove slide to one side, make the clamping plate gradually move to optical fiber current sensor, clamping and fixing to optical fiber current sensor, make the ball along the inside of guide frame slide, synchronous drive limit plate to one side moves, will be placed groove two position place shelter, make limit plate to external plug limit, like this, only need to use a motor, i.

Description

Technical Field

[0001] This utility model relates to the field of sensor technology, and in particular to a fiber optic current sensor calibration platform. Background Technology

[0002] The rapid development of modern industry has placed higher demands on power grid transmission and monitoring, posing a severe challenge to traditional high-voltage, high-current measurement methods. Fiber optic current sensing systems, developed alongside advancements in fiber optic technology and materials science, have gained widespread attention due to their superior advantages, including excellent insulation and anti-interference capabilities, high measurement accuracy, ease of miniaturization, and lack of potential explosion hazards. The main principle of fiber optic current sensors utilizes the Faraday effect of magneto-optical crystals. According to θ = VBl, by measuring the Faraday rotation angle θF, the magnetic field strength generated by the current can be obtained, thereby calculating the current magnitude. Because optical fibers possess advantages such as strong anti-electromagnetic interference capabilities, good insulation performance, and low signal attenuation, they are generally used as the transmission medium in Faraday current sensor research.

[0003] In the prior art, such as Chinese Patent No. CN222049110U, a fiber Bragg grating sensor calibration platform is disclosed. This utility model relates to the technical field of fiber Bragg grating sensor calibration platforms. This fiber Bragg grating sensor calibration platform, through the arrangement of lifting components, synchronous clamping components, flipping components, and a placement stage, enables the simultaneous calibration of multiple fiber Bragg grating sensors. Compared to existing technologies, this changes the calibration platform from one platform capable of calibrating only one sensor to one platform capable of calibrating multiple sensors, thus improving work efficiency. Furthermore, by creating placement slots on the placement stage that match the fiber Bragg grating sensors, the time spent manually adjusting the sensor placement position is eliminated, further improving work efficiency.

[0004] While the above-mentioned solution has the advantages mentioned above, its disadvantages are as follows: Although it can improve work efficiency by setting up lifting components, synchronous clamping components, flipping components, and placement platforms to calibrate multiple fiber Bragg grating sensors simultaneously, it requires multiple motors to connect the fiber optic current sensor to the external plug, resulting in higher production costs for the calibration platform. Furthermore, when flipping the external plug, the connecting wires may become tangled, requiring manual untangling, which is quite troublesome and leads to lower calibration efficiency for the fiber optic current sensor. Utility Model Content

[0005] The purpose of this invention is to address the problems in existing technologies. While these technologies can improve work efficiency by simultaneously assembling and calibrating multiple fiber Bragg grating sensors through the configuration of lifting components, synchronous clamping components, flipping components, and placement platforms, they require multiple motors to connect the fiber optic current sensor to the external connector, resulting in high production costs for the calibration platform. Furthermore, flipping the external connector may cause the connecting wires to become tangled, requiring manual untangling, which is quite troublesome and leads to low efficiency in calibrating fiber optic current sensors.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a fiber optic current sensor calibration platform, comprising: a bottom, and further comprising:

[0007] A synchronous drive mechanism is disposed above the bottom. The synchronous drive mechanism includes two fixed plates, both of which are fixedly connected to the bottom. A bidirectional lead screw is rotatably connected to one side of the two fixed plates. Two guide rods are symmetrically fixedly connected to one side of the two fixed plates. Two movable bars are symmetrically threaded to the outer surface of the bidirectional lead screw. Both movable bars are slidably connected to the two guide rods. A motor is fixedly connected to one side of one of the fixed plates. The output end of the motor is fixedly connected to one end of the bidirectional lead screw. Two round rods are symmetrically fixedly connected to the top of the movable bars.

[0008] A clamping mechanism is disposed above the bottom and is used to clamp and fix the fiber optic current sensor. The clamping mechanism is driven by a synchronous drive mechanism.

[0009] A limiting mechanism is located above the bottom and is used to limit the external plug. The limiting mechanism is driven by a synchronous drive mechanism.

[0010] Preferably, the clamping mechanism includes a connecting plate, which is fixedly connected to two of the round rods. The top of the connecting plate is provided with a plurality of placement slots at equal intervals. Two sliding grooves are symmetrically opened on one side of the inner wall of the placement slots. Two clamping plates are symmetrically slidably connected to the inner wall of the placement slots.

[0011] Preferably, an L-shaped strip is slidably connected inside the groove, the L-shaped strip is fixedly connected to the clamping plate, a sliding rod is fixedly connected to the top of the L-shaped strip away from the clamping plate, a plurality of support rods are fixedly connected to the top of the bottom, a top plate is fixedly connected to one end of the plurality of support rods, a plurality of guide grooves are symmetrically opened on the top of the top plate, and the outer surface of the sliding rod is slidably connected to the inside of the guide groove.

[0012] Preferably, the limiting mechanism includes a second connecting plate, which is fixedly connected to two other round rods. The top of the second connecting plate is provided with a plurality of placement slots, and one side of the inner wall of each placement slot is provided with a wire groove.

[0013] Preferably, the top of the second connecting plate has two fixed blocks symmetrically fixedly connected, the inner walls of the two fixed blocks are slidably connected to movable rods, and the outer surfaces of the movable rods are equidistantly fixedly connected to multiple limiting plates, the limiting plates being L-shaped.

[0014] Preferably, one end of the movable rod is movably connected to a ball bearing, and a spring is provided on the outer surface of the movable rod. One end of the spring is fixedly connected to one side of one of the fixed blocks, and the other end of the spring is fixedly connected to the outer surface of the movable rod.

[0015] Preferably, two support rods are fixedly connected to the bottom near the top of the connecting plate, and one end of each support rod is fixedly connected to a guide frame, with the outer surface of the ball movably connected to the inside of the guide frame.

[0016] Preferably, a plurality of support rods three are fixedly connected at equal intervals at the top of the bottom away from the top plate, and a wire frame is fixedly connected to one end of each support rod three.

[0017] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0018] 1. This utility model uses a controller to start a motor, causing its output shaft to drive a bidirectional lead screw to rotate. Then, under the action of the threaded connection between the bidirectional lead screw and the movable bar, and with the cooperation of the guide rod limiting and guiding the movable bar, the two movable bars can move synchronously towards the center. With the cooperation of the round rod, the clamping mechanism and the limiting mechanism can move synchronously towards the center, connecting the external plug to the fiber optic current sensor. The movement of the two round rods can drive the connecting plate to move towards the center, synchronously driving the L-shaped bar to move to one side, causing the slide bar to slide along the inside of the guide groove to one side. The slide bar gradually slides along the inclined groove of the guide groove into the straight groove, synchronously driving the L-shaped bar to slide along the inside of the sliding groove to one side, causing the clamping plate to gradually move towards the fiber optic current sensor. The fiber optic current sensor is clamped and fixed. Simultaneously, the movement of the other two round rods moves the connecting plate two towards the center, which in turn moves the fixed block, movable rod, limiting plate, and ball bearings to one side. This causes the ball bearings to slide along the inside of the guide frame, gradually sliding from the inclined groove of the guide frame into the straight groove. The movable rod then slides away from the guide frame, simultaneously moving the limiting plate to one side and blocking the position of the second placement groove. This limits the external plug, and the spring is compressed. Under the spring's restoring force, the ball bearings remain inside the guide frame. Thus, only one motor is needed to connect the external plug to the fiber optic current sensor, thereby reducing the production cost of the calibration platform.

[0019] 2. This utility model, through the cooperation of the synchronous drive mechanism, the clamping mechanism and the limiting mechanism, and through the cooperation of the wire frame and the wire groove, allows the connecting wire of the external plug to slide horizontally along the wire groove and the second placement groove without the need to rotate the external plug. This avoids the connecting wire of the external plug from getting tangled, eliminates the need for staff to tidy it up, and is relatively simple, thereby improving the efficiency of fiber optic current sensor calibration. Attached Figure Description

[0020] Figure 1 A side view of the structure of a fiber optic current sensor calibration platform provided by this utility model;

[0021] Figure 2 This utility model provides a fiber optic current sensor calibration platform. Figure 1 Enlarged structural diagram at point A in the middle;

[0022] Figure 3 A front view schematic diagram of a fiber optic current sensor calibration platform provided by this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of a fiber optic current sensor calibration platform provided by this utility model.

[0024] Legend:

[0025] 1. Bottom; 101. Fixed plate; 102. Two-way lead screw; 103. Guide rod; 104. Movable bar; 105. Round rod; 106. Motor; 2. Connecting plate one; 201. Placement groove one; 202. Slide groove; 203. Clamping plate; 204. L-shaped bar; 205. Slide rod; 206. Support rod one; 207. Top plate; 208. Guide groove; 3. Connecting plate two; 301. Placement groove two; 302. Wire groove; 303. Fixed block; 304. Movable rod; 305. Limiting plate; 306. Ball bearing; 307. Spring; 308. Support rod two; 309. Guide frame; 4. Support rod three; 401. Wire frame. Detailed Implementation

[0026] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0027] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0028] Examples, such as Figure 1-4 As shown, this utility model provides a fiber optic current sensor calibration platform, including: a bottom 1, and a synchronous drive mechanism disposed above the bottom 1. The synchronous drive mechanism includes two fixed plates 101, both of which are fixedly connected to the bottom 1. A bidirectional lead screw 102 is rotatably connected to one side of the two fixed plates 101. Two guide rods 103 are symmetrically fixedly connected to one side of the two fixed plates 101. Two movable bars 104 are symmetrically threaded to the outer surface of the bidirectional lead screw 102. Both movable bars 104 are slidably connected to the two guide rods 103. A motor 106 is fixedly connected to one side of one of the fixed plates 101. The output end of the motor 106 is fixedly connected to one end of the bidirectional lead screw 102. Two round rods 105 are symmetrically fixedly connected to the top of the movable bars 104. A clamping mechanism disposed above the bottom 1 is used to clamp and fix the fiber optic current sensor. The clamping mechanism is driven by the synchronous drive mechanism. A limiting mechanism disposed above the bottom 1 is used to limit the external plug. The limiting mechanism is driven by the synchronous drive mechanism.

[0029] Furthermore, such as Figure 1-4As shown, the clamping mechanism includes a connecting plate 2, which is fixedly connected to two round rods 105. The top of the connecting plate 2 is provided with multiple placement slots 201 at equal intervals. Two sliding grooves 202 are symmetrically opened on one side of the inner wall of the placement slots 201. Two clamping plates 203 are symmetrically slidably connected to the inner wall of the placement slots 201. With the above arrangement, the fiber optic current sensor can be placed in the placement slots 201. When the two clamping plates 203 move towards the middle, the fiber optic current sensor can be clamped and fixed.

[0030] Furthermore, such as Figure 1-4 As shown, an L-shaped strip 204 is slidably connected inside the slide groove 202. The L-shaped strip 204 is fixedly connected to the clamping plate 203. A slide rod 205 is fixedly connected to the top of the L-shaped strip 204 away from the clamping plate 203. Multiple support rods 206 are fixedly connected to the top of the bottom 1. One end of the multiple support rods 206 is fixedly connected to a top plate 207. Multiple guide grooves 208 are symmetrically opened on the top of the top plate 207. The outer surface of the slide rod 205 is slidably connected to the inside of the guide groove 208. When the L-shaped strip 204 moves to one side, the slide rod 205 slides to one side along the inside of the guide groove 208, and the slide rod 205 gradually slides into the straight groove along the inclined groove of the guide groove 208. At the same time, it drives the L-shaped strip 204 to slide to one side along the inside of the slide groove 202, so that the clamping plate 203 gradually moves toward the fiber optic current sensor and clamps and fixes the fiber optic current sensor.

[0031] Furthermore, such as Figure 1-4 As shown, the limiting mechanism includes a connecting plate 3, which is fixedly connected to two other round rods 105. The top of the connecting plate 3 is provided with multiple placement slots 301 at equal intervals. A wire groove 302 is provided on one side of the inner wall of the placement slot 301. With the above arrangement, when the other two round rods 105 move to one side, the connecting plate 3 can be moved to one side. With the placement slots 301, the external plug can be inserted into the placement slots 301. The placement slots 301 match the external plug, so that the connecting wire of the external plug is inserted into the wire groove 302.

[0032] Furthermore, such as Figure 1-4 As shown, two fixing blocks 303 are symmetrically fixedly connected to the top of the connecting plate 2 3. Movable rods 304 are slidably connected to the inner walls of the two fixing blocks 303. Multiple limiting plates 305 are fixedly connected at equal intervals to the outer surface of the movable rods 304. The limiting plates 305 are set in an L-shape. With the above settings, when the limiting plates 305 are moved to the position of the placement slot 2 301, the external plug inside the placement slot 2 301 can be limited.

[0033] Furthermore, such as Figure 1-4As shown, a ball bearing 306 is movably connected to one end of the movable rod 304, and a spring 307 is provided on the outer surface of the movable rod 304. One end of the spring 307 is fixedly connected to one side of one of the fixed blocks 303, and the other end of the spring 307 is fixedly connected to the outer surface of the movable rod 304. Under the restoring force of the spring 307, the movable rod 304 can slide towards the ball bearing 306.

[0034] Furthermore, such as Figure 1-4 As shown, two support rods 308 are fixedly connected to the top of the bottom 1 near the top of the connecting plate 3. One end of the two support rods 308 is fixedly connected to a guide frame 309. The outer surface of the ball 306 is movably connected to the inside of the guide frame 309. With the above arrangement, the ball 306 can roll along the inside of the guide frame 309. When the ball 306 rolls along the inclined groove of the guide frame 309, the ball 306 can be subjected to a force away from the guide frame 309.

[0035] Furthermore, such as Figure 1-4 As shown, multiple support rods 3 4 are fixedly connected at equal intervals at the top of the bottom 1 away from the top plate 207. One end of the support rod 3 4 is fixedly connected to a wire frame 401. The wire frame 401 is designed to facilitate placing the connection wire of the external plug in the groove of the wire frame 401.

[0036] Working principle: In use, the fiber optic current sensor is placed in placement slot 201, and the external plug is inserted into placement slot 301, with the connecting wire of the external plug passing through wire groove 302. The remaining connecting wires are then laid flat in the groove of the wire frame 401. The controller then starts the motor 106, causing its output shaft to drive the bidirectional lead screw 102 to rotate. Under the action of the threaded connection between the bidirectional lead screw 102 and the movable bar 104, and with the guidance of the guide rod 103 limiting and guiding the movable bar 104, the two movable bars 104 can move synchronously towards the center. With the cooperation of the round rod 105, the... The synchronous clamping mechanism and limiting mechanism move towards the center, connecting the external plug to the fiber optic current sensor. The movement of two of the round rods 105 moves the connecting plate 2 towards the center, simultaneously moving the L-shaped strip 204 to one side. This causes the slide rod 205 to slide to one side along the inside of the guide groove 208, gradually sliding it into the straight groove. Simultaneously, the L-shaped strip 204 slides to one side along the inside of the sliding groove 202, causing the clamping plate 203 to gradually move towards the fiber optic current sensor, clamping and fixing it. Simultaneously, the movement of the other two round rods 105... This can drive the connecting plate 3 to move towards the center, simultaneously driving the fixed block 303, movable rod 304, limiting plate 305, and ball bearings 306 to one side. This causes the ball bearings 306 to slide along the inside of the guide frame 309, gradually sliding from the inclined groove of the guide frame 309 into the straight groove. Simultaneously, the movable rod 304 slides away from the guide frame 309, driving the limiting plate 305 to one side, blocking the position of the placement slot 301 and limiting the external plug. Simultaneously, the spring 307 is compressed. Under the restoring force of the spring 307, the... The ball bearing 306 remains inside the guide frame 309, allowing only one motor 106 to connect the external plug to the fiber optic current sensor. This reduces the production cost of the calibration platform. Furthermore, during the connection process, the external plug does not need to be rotated. With the cooperation of the frame 401 and the groove 302, the connecting wire of the external plug can slide horizontally along the groove 302 and the placement groove 301. This prevents the connecting wire from getting tangled, eliminating the need for manual adjustments and simplifying the process, thereby improving the efficiency of fiber optic current sensor calibration.

[0037] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A fiber optic current sensor calibration platform, comprising: The bottom (1) is characterized in that it further includes: A synchronous drive mechanism is provided above the bottom (1). The synchronous drive mechanism includes two fixed plates (101). Both fixed plates (101) are fixedly connected to the bottom (1). A bidirectional lead screw (102) is rotatably connected to the opposite side of the two fixed plates (101). Two guide rods (103) are symmetrically fixedly connected to the opposite side of the two fixed plates (101). Two movable bars (104) are symmetrically threaded on the outer surface of the bidirectional lead screw (102). Both movable bars (104) are slidably connected to the two guide rods (103). A motor (106) is fixedly connected to one side of one of the fixed plates (101). The output end of the motor (106) is fixedly connected to one end of the bidirectional lead screw (102). Two round rods (105) are symmetrically fixedly connected to the top of the movable bar (104). A clamping mechanism is provided above the bottom (1) for clamping and fixing the fiber optic current sensor. The clamping mechanism is driven by a synchronous drive mechanism. A limiting mechanism is provided above the bottom (1) for limiting the external plug. The limiting mechanism is driven by a synchronous drive mechanism.

2. The fiber optic current sensor calibration platform according to claim 1, characterized in that: The clamping mechanism includes a connecting plate (2), which is fixedly connected to two round rods (105). The top of the connecting plate (2) is provided with a plurality of placement slots (201) at equal intervals. Two sliding grooves (202) are symmetrically opened on one side of the inner wall of the placement slot (201). Two clamping plates (203) are symmetrically slidably connected to the inner wall of the placement slot (201).

3. The fiber optic current sensor calibration platform according to claim 2, characterized in that: An L-shaped strip (204) is slidably connected inside the slide groove (202). The L-shaped strip (204) is fixedly connected to the clamping plate (203). A slide rod (205) is fixedly connected to the top of the L-shaped strip (204) away from the clamping plate (203). A plurality of support rods (206) are fixedly connected to the top of the bottom (1). One end of the plurality of support rods (206) is fixedly connected to a top plate (207). A plurality of guide grooves (208) are symmetrically opened on the top of the top plate (207). The outer surface of the slide rod (205) is slidably connected to the inside of the guide groove (208).

4. The fiber optic current sensor calibration platform according to claim 1, characterized in that: The limiting mechanism includes a connecting plate 2 (3), which is fixedly connected to two other round rods (105). The top of the connecting plate 2 (3) is provided with multiple placement slots 2 (301) at equal intervals, and a wire groove (302) is provided on one side of the inner wall of the placement slot 2 (301).

5. The fiber optic current sensor calibration platform according to claim 4, characterized in that: The top of the connecting plate 2 (3) is symmetrically fixedly connected to two fixing blocks (303), and the inner walls of the two fixing blocks (303) are slidably connected to movable rods (304). The outer surface of the movable rods (304) is equidistantly fixedly connected to multiple limiting plates (305), and the limiting plates (305) are set in an L shape.

6. The fiber optic current sensor calibration platform according to claim 5, characterized in that: One end of the movable rod (304) is movably connected to a ball bearing (306), and a spring (307) is provided on the outer surface of the movable rod (304). One end of the spring (307) is fixedly connected to one side of one of the fixing blocks (303), and the other end of the spring (307) is fixedly connected to the outer surface of the movable rod (304).

7. The fiber optic current sensor calibration platform according to claim 6, characterized in that: Two support rods (308) are fixedly connected to the top of the bottom (1) near the top of the connecting plate (3). One end of the two support rods (308) is fixedly connected to a guide frame (309). The outer surface of the ball (306) is movably connected to the inside of the guide frame (309).

8. The fiber optic current sensor calibration platform according to claim 3, characterized in that: The bottom (1) is fixedly connected at equal intervals to the top of the top plate (207) away from the bottom (1), and a wire frame (401) is fixedly connected to one end of the support rod (4).

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