A fiber optic rotational displacement device

Abstract

This utility model discloses an optical fiber rotation and displacement device, which includes a lead screw slide assembly, a height adjustment bracket, an electric rotary table, an optical fiber clamping assembly, and a control device. The two slides of the lead screw slide assembly are respectively connected to the height adjustment bracket, and the two height adjustment brackets are respectively connected to the electric rotary table at corresponding positions. Each of the two electric rotary tables has an optical fiber clamping assembly fixed to it. The stepper motor of the lead screw slide assembly is connected to the control device via the two electric rotary tables. By fixing the optical fiber to the clamps at both ends, the control device controls the electric rotary table to achieve precise rotation, and also controls the movement of the slides of the lead screw slide assembly. Combined with the height adjustment bracket, this ultimately achieves the rotation and displacement of the optical fiber, and can be used for the fabrication of grating structures.

Description

Technical Field

[0001] This utility model relates to the field of fiber optic grating structures, specifically a fiber optic rotation displacement device. Background Technology

[0002] A fiber grating is a device that utilizes the photosensitive properties of optical fiber materials to form a spatial phase grating within the fiber core. It can be used to construct various passive fiber devices with unique properties. In 1993, Malo et al. used a point-by-point writing method to write gratings. They passed ultraviolet light emitted from a laser through a narrow 15 μm slit and then through a 15 mm focal length lens to illuminate the fiber core, thereby changing its refractive index. By changing the shift period of the platform, they were able to fabricate various types of gratings.

[0003] With the advancement of technology, the sensitivity requirements for fiber optic sensors are becoming increasingly stringent. This necessitates the use of fiber optics in conjunction with rotary displacement devices, utilizing lasers to more precisely inscribe gratings for improved sensor performance. However, most existing fiber optic rotary displacement devices require manual operation, a cumbersome process with low precision, which can easily lead to fabrication failures.

[0004] To address this, Chinese patent CN110937797A discloses an optical fiber rotation device. This device achieves optical fiber rotation through a simple mechanism, but it cannot achieve optical fiber displacement and is not suitable for the fabrication of fiber gratings.

[0005] Chinese patent CN220508384U discloses an optical fiber rotation device with angle feedback. This device can provide feedback on the rotation angle of the optical fiber and accurately measure the refractive index distribution of the optical fiber, but it cannot clamp or displace the two ends of the optical fiber. Utility Model Content

[0006] To address the shortcomings of the existing technology, this invention provides an optical fiber rotation displacement device.

[0007] The technical solution to achieve the purpose of this utility model is:

[0008] A fiber optic rotation displacement device includes a lead screw slide assembly, a height adjustment bracket, an electric rotary table, a fiber optic clamping assembly, and a control device, wherein:

[0009] The two slides of the lead screw slide assembly are respectively connected to two height adjustment brackets, which are respectively connected to the electric rotary table. The electric rotary table is fixed to the fiber optic clamping assembly. The lead screw slide assembly and the electric rotary table are respectively connected to the control device.

[0010] Further:

[0011] The lead screw slide assembly includes two slides with a fixed distance between them. The overall movement distance and speed of the two slides are controlled by a control device to achieve fiber displacement.

[0012] The height adjustment brackets are of two types, each fixed to the slide table via a base. An electric rotary table is fixed to the mounting plate of the height adjustment brackets, and the height is adjusted by the height adjustment brackets.

[0013] The number of electric rotary stages is two, and the optical fiber clamping assembly is fixedly connected to the scale turntables of the two electric rotary stages respectively. The rotation angle of the two electric rotary stages is controlled by a control device to achieve precise rotation of the optical fiber.

[0014] The optical fiber clamping assembly consists of two components, which are fixed alternately on the base to clamp the optical fiber.

[0015] The beneficial effects of this utility model are:

[0016] By installing the aforementioned fiber optic rotation and displacement device, the components are installed, and the fiber optic cable with the coating stripped is fixed on the clamping components at both ends. The rotation of the electric rotary table and the movement of the slide table are controlled by the control device to realize the rotation and displacement of the fiber optic cable. With the help of a marking machine, different fiber optic gratings can be accurately produced, improving the success rate and efficiency of structure production. Attached Figure Description

[0017] Figure 1 This is a right view of the overall structure of an embodiment of the present utility model;

[0018] Figure 2 This is a diagram of the lead screw slide assembly according to an embodiment of the present utility model;

[0019] Figure 3 This is a diagram of the height-adjustable bracket according to an embodiment of the present invention;

[0020] Figure 4 This is a partial view of the electric rotary table according to an embodiment of the present utility model;

[0021] Figure 5 This is a diagram of the fiber optic clamping assembly according to an embodiment of the present invention.

[0022] In the diagram: 1. Lead screw slide assembly; 2. Height adjustment bracket; 3. Electric rotary table; 4. Fiber optic clamping assembly; 5. Control device; 11. Slide table; 12. Stepper motor; 21. Screw hole; 22. Base; 23. Mounting plate; 31. Screw hole; 32. Scale dial; 41. Fixing plate; 42. Base; 43. Fiber optic clamp. Detailed Implementation

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. Example

[0024] As shown in the figure, the optical fiber rotation displacement device consists of a lead screw slide assembly 1, a height adjustment bracket 2, an electric rotary table 3, an optical fiber clamping assembly 4, and a control device 5. The lead screw slide assembly 1 is fixedly mounted with two slides 11, and the distance between the slides 11 is fixed. The bases 22 of the two height adjustment brackets 2 are respectively connected to the slides 11, and the two electric rotary tables 3 are respectively fixed by the mounting plates 23. The function of the height adjustment brackets 2 is to convert the movement of the two slides 11 into the displacement of the optical fiber, and to realize the vertical height adjustment of the optical fiber through the two height adjustment brackets 2. The two optical fiber clamping assemblies 4 are respectively fixedly mounted on the scale dials 32 of the two electric rotary tables 3. The control device 5 controls the precise rotation of the electric rotary table 3 and the movement of the slides 11 of the lead screw slide assembly 1 to realize the rotation and displacement of the optical fiber.

[0025] The screw holes of the height adjustment bracket 2, the electric rotary table 3, and the fiber optic clamping assembly 4 are each compatible.

[0026] The number of slides 11 in the lead screw slide assembly 1 is two. The two slides 11 are installed in a suitable position and the distance between the slides 11 is fixed. The stepper motor 12 is connected to the control device 5.

[0027] There are two height adjustment brackets 2, which are fixedly installed on the slide table 11 via the base 22. There are four screw holes 21 on the mounting plate 23, which are used to fix the electric rotary table 3.

[0028] There are two electric rotary tables 3. The scale dial 32 has four screw holes 31, which are respectively fixedly connected to the fiber optic clamping assembly 4. The two electric rotary tables 3 are controlled by the control device 5.

[0029] There are two fiber optic clamping components 4. Two fiber optic clamps 43 are fixed alternately on the base 42 to clamp the fiber optics, and are respectively fixed on the electric rotary table 3 by the fixing plate 41.

[0030] The method of using the above-mentioned fiber optic rotational displacement device is as follows:

[0031] First, use wire strippers to cut a 15cm section of optical fiber. Remove a 5cm section of coating from the middle of the optical fiber. Clean the optical fiber with an alcohol swab and fix the optical fiber to the optical fiber clamps 43 at both ends. Adjust the vertical height of the optical fiber using the height adjustment bracket 2.

[0032] Furthermore, the control device 5 is used to reset the device to ensure that the scale of the electric rotary table 3 is 0° and the slide table 11 is in the initial position.

[0033] Based on the parameters of the grating, and in conjunction with the marking machine, select and configure the appropriate operating mode to ensure the positioning and processing accuracy of the optical fiber;

[0034] The control device 5 controls the movement of the two slides 11, thereby moving the optical fiber the desired distance.

[0035] The control device 5 controls the precise rotation of one or two electric rotary tables 3, thereby rotating the optical fiber at a suitable angle.

[0036] The control device 5 controls the slide table 11 and the electric rotary table 3 to rotate the optical fiber at a suitable angle and move it a desired distance.

Claims

1. An optical fiber rotary displacement device characterized by: It includes a lead screw slide assembly, a height adjustment bracket, an electric rotary table, an optical fiber clamping assembly, and a control device, wherein: The two slides of the lead screw slide assembly are respectively connected to two height adjustment brackets, which are respectively connected to the electric rotary table. The electric rotary table is fixed to the fiber optic clamping assembly. The lead screw slide assembly and the electric rotary table are respectively connected to the control device.

2. The fiber optic rotary joint of claim 1, wherein: The lead screw slide assembly includes two slides with a fixed distance between them. The overall movement distance and speed of the two slides are controlled by a control device to achieve fiber displacement.

3. The fiber optic rotational displacement device according to claim 1, characterized in that: The height adjustment brackets are of two types, each fixed to the slide table via a base. An electric rotary table is fixed to the mounting plate of the height adjustment brackets, and the height is adjusted by the height adjustment brackets.

4. The fiber optic rotary joint of claim 1, wherein: The number of electric rotary stages is two, and the optical fiber clamping assembly is fixedly connected to the scale turntables of the two electric rotary stages respectively. The rotation angle of the two electric rotary stages is controlled by a control device to achieve precise rotation of the optical fiber.

5. The fiber optic rotary joint of claim 1, wherein: The optical fiber clamping assembly consists of two components, which are fixed alternately on the base to clamp the optical fiber.

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