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High-precision and high-stability pendulum mirror device suitable for space environment and working method thereof

A space environment, high-precision technology, applied in the direction of optical components, optics, instruments, etc., can solve the problems that cannot meet the requirements of working accuracy and stability, and the accuracy and stability of telescopes cannot meet the requirements of use, so as to reduce the risk of mechanical structure interference , simple structure, high adjustment accuracy

Active Publication Date: 2019-08-02
NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the accuracy and stability of the telescope docking process in the prior art cannot meet the requirements of use, the present invention provides an ultra-high resolution and stability swing mirror adjustment device
The invention is a flexible adjustment mechanism, which can overcome the shortcomings of the traditional rotation mechanism that cannot meet the requirements of working accuracy and stability.

Method used

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  • High-precision and high-stability pendulum mirror device suitable for space environment and working method thereof
  • High-precision and high-stability pendulum mirror device suitable for space environment and working method thereof
  • High-precision and high-stability pendulum mirror device suitable for space environment and working method thereof

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Embodiment 1

[0029] Embodiment 1, a high-precision and stable pendulum mirror device suitable for space environments, Picture 1-1 , Figure 1-2 It is an overall structure diagram of the present invention, which is an overall structure system scheme. It consists of two subsystems, the high-precision adjustment system of the swing mirror and the real-time feedback system of the swing mirror position.

[0030] There are two working modes of the oscillating mirror, one is that the oscillating mirror scans and aligns and maintains two states after alignment;

[0031] When the swing mirror is scanned and aligned, the upper and lower symmetrical flexible structural parts 12 act as the rotation axis, and the piezoelectric ceramic actuator 11 drives the swing mirror chamber 5 and the swing mirror 3 to deflect through the adjustment lever 13. Search, stop scanning when scanning to the working position of the swing mirror, and the high-precision sensor records the working position.

[0032] When ...

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Abstract

The invention provides a high-precision and high-stability pendulum mirror device suitable for space environment and a working method thereof. A pendulum mirror is arranged in a pendulum mirror chamber. The front section of the pendulum mirror chamber is mounted on a fixed front panel through two flexible structures in an up-down symmetry manner, and no impact force guarantees adjustment stability; the back end of the pendulum mirror chamber is provided with an adjusting rod, and the other end of the adjusting rod is equipped with an adjustment actuator, so that the position of the pendulum mirror can be adjusted precisely; the side surface of the pendulum mirror chamber is equipped with a high-precision sensor; and the high-precision sensor and a sensor connection plate, together with thetwo flexible structure members, the pendulum mirror chamber, the adjustment actuator and the adjustment lever, form real time closed-loop control. The device can ensure coincidence of the adjusting centers of the flexible structures and ensure direction adjusting accuracy and stability to the maximum extent; the high-precision sensor can detect the position information of the pendulum mirror in real time; the position of the pendulum mirror drifts a little bit due to load excitation of temperature and vibration and the like during working; and through the high-precision sensor, position information is fed back and through the adjustment actuator, the position of the pendulum mirror is corrected, thereby ensuring position precision of the pendulum mirror.

Description

technical field [0001] The invention relates to a mirror swing mechanism and device. It involves technical fields such as aerospace, aviation, astronomical terminal instruments, optical detection, etc., especially relates to an ultra-high resolution and stable swing mirror adjustment mechanism and device suitable for use in vacuum or space environments, and more specifically relates to a gravitational Optical path scanning and automatic alignment swing mirror device during space docking of wave telescope. The invention also relates to the method of operation of such a device. Background technique [0002] In 1916, Einstein published his general theory of relativity, which theoretically predicted the existence of gravitational waves. In Einstein's general theory of relativity, space-time geometry is not just the background of physical motion, it has its own dynamic connotation, describing the gravitational field produced by the gravitational source. [0003] Space gravitat...

Claims

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Application Information

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IPC IPC(8): G02B26/08G02B26/10
CPCG02B26/0858G02B26/10
Inventor 许明明王辰忠胡中文彭元镜徐腾陈忆侯永辉王磊
Owner NANJING INST OF ASTRONOMICAL OPTICS & TECH NAT ASTRONOMICAL OBSE
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