A light-combining prism parallel micro-motion device for laser gyroscope light-combining assembly

A light-combining prism and laser gyro technology, applied in the direction of installation, optics, optical components, etc., to achieve the effect of no need for lubrication, simple and compact structure, and high precision

Inactive Publication Date: 2017-01-04
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a light-combining prism adjustment device based on a parallel micro-motion mechanism in view of the problems existing in the existing manually-operated light-combining prism adjustment process, with flexible motion output trajectory, small moment of inertia and good dynamic performance , Simple and compact structure, strong rigidity and high precision, which help to improve the quality and efficiency of laser gyroscope assembly

Method used

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  • A light-combining prism parallel micro-motion device for laser gyroscope light-combining assembly
  • A light-combining prism parallel micro-motion device for laser gyroscope light-combining assembly
  • A light-combining prism parallel micro-motion device for laser gyroscope light-combining assembly

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Experimental program
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Effect test

Embodiment 1

[0025] control figure 1 , 2 , 3, 4, 5, 6, 7, 8, the light-combining prism parallel micro-movement device used for laser gyro light-combining assembly, including an optical platform (1), a light-combining prism parallel micro-motion platform (2) and The optical element (3) to be assembled in the laser gyro optical combination assembly. The light-combining prism parallel micro-motion platform (2) and the optical element (3) to be assembled in the laser gyro light-combining assembly are placed in the middle of the optical platform (1), and the light-combining prism parallel micro-motion platform (2) is fixed on the optical platform (2) by screws. On the platform (1), the optical element (3) to be assembled in the laser gyro light combination assembly is connected to the optical platform (1) through an adapter plate (4); the light combination prism parallel micro-motion platform (2) has Four linear drive rods (20) drive the light-combining prism (7) in the optical element (3) to...

Embodiment 2

[0026] Embodiment 2: This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0027] control figure 1 , 2 , 3. The light-combining prism parallel micro-motion platform (2) includes a bottom plate (9), a vertical lifting platform (10), four parallel branch chains (11) and a light-combining prism clamping mechanism (12) , the bottom plate (9) is fixed on the optical table (1), the vertical lifting platform (10) is fixed above the bottom plate (9), and one end of the parallel branch chain (11) is welded on the vertical lifting platform (10), The other end of the parallel branch chain (11) is welded to the light-combining prism clamping mechanism (12), and the four parallel branch chains (11) are symmetrically arranged between the vertical lifting platform (10) and the light-combining prism clamping mechanism (12) .

[0028] control figure 1 , 2 , 3, 4, the parallel branch chain (11) includes a first flexible Hooke hinge (13), a piezoe...

Embodiment 3

[0030] Embodiment 3: This embodiment is basically the same as Embodiment 1, and the special features are as follows:

[0031] control figure 1 , 2 , the optical element (3) to be assembled in the laser gyro light combining assembly is composed of a resonant cavity (5), a plane mirror (6), and a light combining prism (7), and the plane mirror (6) is placed horizontally in the resonant cavity Body (5) laser beam exit port, light-combining prism (7) is placed horizontally on the plane mirror (6), in a free optical gel state. Through the adjustment of the mechanism, the operation of the light combining prism (7) is realized, so that the light spots of the clockwise and counterclockwise beams of light emitted overlap.

[0032] control Image 6 , the rotational movement state of the combined light prism (7) around the Z axis in space.

[0033]control Figure 7 , the translational motion state of the light-combining prism (7) along the X-axis in space.

[0034] control Figure...

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Abstract

The invention relates to a light-combining prism parallel micro-motion device used for laser gyroscope light-combining assembly. It includes an optical platform, a light-combining prism parallel micro-movement platform and optical elements to be assembled in the laser gyro light-combining assembly. The invention adopts the joint control method of piezoelectric ceramics and linear drive rods to establish the light combining prism adjustment mechanism with flexible motion output track, small moment of inertia, good operability and high positioning accuracy, which helps to improve the angle and position of the light combining prism Adjust the precision, and then improve the quality and efficiency of laser gyro optical assembly.

Description

technical field [0001] The invention relates to the field of laser gyro light combination, in particular to a light combination prism parallel micro-motion device used for laser gyro light combination assembly. [0002] technical background [0003] Laser gyro has the advantages of fast response, wide dynamic measurement range, good linearity, small dynamic error, high precision and high reliability, and is widely used in strapdown inertial navigation systems. Combining light of laser gyro refers to the precise adjustment of the position of light combining prism and photoelectric tube during the manufacturing process of laser gyro, so that the laser beam running in the resonant cavity will interfere when outputting, and the frequency difference information corresponding to the angular velocity of gyro can be accurately obtained. The adjustment of the light-combining prism is an important part of the light-combining laser gyro. At present, the adjustment process of the light-c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/18
Inventor 马立周辅君金宁博高海洲侍业荣伟彬孙立宁
Owner SHANGHAI UNIV
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