Large diameter telescope primary mirror position detection and control

LIU Bo-ting; LI Yu-xia; MENG Hao-ran; YANG Xiao-xia; QIAO Bing

doi:10.13873/J.1000-9787(2016)05-0132-03

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Large diameter telescope primary mirror position detection and control

更新时间：2025-09-11

- Large diameter telescope primary mirror position detection and control
- Vol. 35, Issue 5, Pages: 132-134(2016)
- 作者机构：
  
  1. 中国科学院长春光学精密机械与物理研究所
  2. 中国科学院大学
- 作者简介：
- 基金信息：
- DOI：10.13873/J.1000-9787(2016)05-0132-03
  CLC： TH743
- Published：2016
- 稿件说明：
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[1]刘博婷,李玉霞,孟浩然,杨晓霞,乔兵.大口径望远镜主镜位置检测与控制[J].传感器与微系统,2016,35(05):132-134.

LIU Bo-ting, LI Yu-xia, MENG Hao-ran, et al. Large diameter telescope primary mirror position detection and control[J]. 2016, 35(5): 132-134.
[1]刘博婷,李玉霞,孟浩然,杨晓霞,乔兵.大口径望远镜主镜位置检测与控制[J].传感器与微系统,2016,35(05):132-134. DOI： 10.13873/J.1000-9787(2016)05-0132-03.

LIU Bo-ting, LI Yu-xia, MENG Hao-ran, et al. Large diameter telescope primary mirror position detection and control[J]. 2016, 35(5): 132-134. DOI： 10.13873/J.1000-9787(2016)05-0132-03.

摘要

为了保持主镜与镜室的相对位置不变

提高望远镜的成像质量

对主镜位置检测和控制方法进行了研究。主镜位置检测使用了6只高精度LVDT直线位移传感器

能够实时地计算主镜在5个自由度上的位移变化和温度导致的主镜半径变化。在主镜位置检测的基础上

设计了主镜位置的反馈控制方法

采用了PID控制算法对主镜位置进行闭环矫正。对提出的位置检测和控制方法进行了验证实验

实验结果表明:该方法能够对主镜位置进行精确地解算和控制

满足工程实际需要。

Abstract

In order to maintain relative position of main mirror and mirror chamber unchanged

improve image quality of telescope

main mirror position detection and control method is studied. Primary mirror position detection system uses six high precision LVDT straight line displacement sensors

which can calculate displacement change of primary mirror on five degrees of freedom and radius change of major mirror caused by temperature in real-time.On the basis of the primary mirror position detection

feedback control method for primary mirror position is designed

using PID control algorithm for closed-loop correction of primary mirror position. The proposed position detection and control methods is validated

experimental results show that this method can accurately calculate and control the primary mirror position

which can meet actual needs of engineering.

关键词

Keywords

references

大型望远镜主镜位姿解算与监测系统设计 [J]. 李玉霞,刘昌华,王建立,王帅,张斌. 电子测量与仪器学报 . 2015(05)

基于磁传感器的弹丸炮口测速系统设计 [J]. 杨国欢,张晓明. 传感器与微系统 . 2015(02)

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4m SiC轻量化主镜的主动支撑系统 [J]. 吴小霞,李剑锋,宋淑梅,邵亮,明名. 光学精密工程 . 2014(09)

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