Optical fiber positioning unit with two electromotors

HAN Guang-yu; LIU Wei; ZHOU Gang; GAO Yun-guo

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Optical fiber positioning unit with two electromotors

更新时间：2020-08-12

- Optical fiber positioning unit with two electromotors
- Optics and Precision Engineering Vol. 12, Issue 2, Pages: 151-155(2004)
- 作者机构：
  
  1. 长春大学长春,130022
  2. 中国科学院, 长春光学精密机械与物理研究所, 吉林, 长春, 130033
  3. 长春理工大学, 吉林, 长春, 130022
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN253
- Received：02 November 2003，
  
  Revised：05 January 2004，
  
  Published Online：15 April 2004，
  
  Published：15 April 2004
- 稿件说明：
移动端阅览
韩光宇, 刘伟, 周刚, 高云国. 双电机单元光纤定位机构[J]. 光学精密工程, 2004,(2): 151-155

HAN Guang-yu, LIU Wei, ZHOU Gang, GAO Yun-guo. Optical fiber positioning unit with two electromotors[J]. Editorial Office of Optics and Precision Engineering, 2004,(2): 151-155
韩光宇, 刘伟, 周刚, 高云国. 双电机单元光纤定位机构[J]. 光学精密工程, 2004,(2): 151-155 DOI：

HAN Guang-yu, LIU Wei, ZHOU Gang, GAO Yun-guo. Optical fiber positioning unit with two electromotors[J]. Editorial Office of Optics and Precision Engineering, 2004,(2): 151-155 DOI：

摘要

通过对天文观测中光纤定位典型方法的分析

结合工程的特点和工作要求

提出了在焦面上进行分区

并且在单元区域内做直线运动和旋转运动的双电机单元光纤定位机构的方法.该方法能到达区域内的任意一点

进而多个单元机构可以到达整个焦面上的任意位置

完成定位光纤的目的.对这一结构进行了原理分析和精度、定位时间的计算

能够满足工程使用要求.用7根单元机构模拟了4000根单元的相互关系

结果表明

机构的重复性误差和目标点定位误差的均方根值的最大值是22.17μm和30.71μm

能够满足望远镜快速、准确的定位要求.

Abstract

In the LAMOST(Large Area Multi-Object Fiber Spectroscope Telescope)project

4 000 optical fibers are mounted on a focal plane of 1.75 m in diameter

the position precision is less than 40 microns

and the positioning time is less than 30 minutes. By analyzing the typical method of positioning optical fibers for astronomic observation and taking into consideration the structural characteristics and the operating requirements of LAMOST

a new plan has been brought forward for positioning of optical fibers in a local plane divided into many unit zones. The unit turns round through 360°

and the locomotive block moves in a linear guide in every unit zone. So the optical fiber can reach everywhere in the focal plane. Experiment results show that the standard deviation of repeat error and positioning error are 22.17　μm and 30.71 μm rms

respectively

and the positioning precision of this system can meet the demand.

关键词

Keywords

references

高云国.多光纤密集排列精密定位方法研究[J] .光学精密工程,2000,8(5):470-472.GAO Y G. Accurate positioning scheme for close range of multi-optical-fibers [J] . Optics and PrecisionEngineering, 2000,8(5):470-472.(in Chinese)

王刚.1AMOST技术报告[R] .北京:北京天文台,1998.WANG G. Technique report for LAMOST [R] . Beijing:Beijing Astronomical Observatory. 1998.(in Chinese)

GAO Y G. The scheme of a not blind positioning structure with parallel adjusting tables and swing rods for 4 000 optical fibers of LAMOST[J] . Astrophysics Reports, 1996,29: 94-103.

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周一览,黄傲,殷浩.一种CCD显微测量系统[J] .计量技术,2000,6(2):12-14.ZHOU Y L, HUANG A, YIN H. CCD-microscope measurement system[J] . Measurement Technique, 2000,6(2):12-14.(in Chinese)

周刚,高云国,刘伟,等.多单元光纤定位系统控制模式研究[J] .光学精密工程,2002,10(6):53-59.ZHOU G,GAO Y G, LIU W, et al . Research of control mode for multi-optical fiber units positioning system[J] .Optics and Precision Engineering, 2002,10(6): 53-59.(in Chinese)

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