Application of fiber optic displacement sensor to measuring suspension micro-displacement of superconducting rotor in cryogenic instrument

HU Xin-ning; CUI Chun-yan; LEI Yuan-zhong; HAN Li; WANG Qiu-liang

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Application of fiber optic displacement sensor to measuring suspension micro-displacement of superconducting rotor in cryogenic instrument

Article | 更新时间：2020-08-12

- Application of fiber optic displacement sensor to measuring suspension micro-displacement of superconducting rotor in cryogenic instrument
- Optics and Precision Engineering Vol. 15, Issue 9, Pages: 1342-1346(2007)
- 作者机构：
  
  1. 中国科学院研究生院北京,100039
  2. 中国科学院电工研究所中国科学院应用超导重点实验室北京,100080
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN253
- Received：05 February 2007，
  
  Revised：29 May 2007，
  
  Published Online：30 September 2007，
  
  Published：30 September 2007
- 稿件说明：
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胡新宁,崔春艳,雷沅忠,韩立,王秋良. 光纤位移传感器在低温装置中测量超导转子悬浮微位移的应用[J]. 光学精密工程, 2007,15(9):1342-1346

HU Xin-ning, CUI Chun-yan, LEI Yuan-zhong, et al. Application of fiber optic displacement sensor to measuring suspension micro-displacement of superconducting rotor in cryogenic instrument[J]. Optics and precision engineering, 2007, 15(9): 1342-1346.
胡新宁,崔春艳,雷沅忠,韩立,王秋良. 光纤位移传感器在低温装置中测量超导转子悬浮微位移的应用[J]. 光学精密工程, 2007,15(9):1342-1346 DOI：

HU Xin-ning, CUI Chun-yan, LEI Yuan-zhong, et al. Application of fiber optic displacement sensor to measuring suspension micro-displacement of superconducting rotor in cryogenic instrument[J]. Optics and precision engineering, 2007, 15(9): 1342-1346. DOI：

摘要

介绍了一种补偿式光纤位移传感器

对比分析了该传感器在室温(293 K)下和液氮温度(77 K)下的传输特性。结果表明

该传感器能有效地消除外界环境的影响

可用于宽温度范围的位移测量。在液氦温度(4.2 K)下测量超导转子悬浮微位移的实验结果表明

该传感器可在低温下进行位移测量

测量分辨率达到10 μm。实验结果为光纤位移传感器在低温环境下的应用提供了参考。

Abstract

A Compensated Fiber Optic Displacement Sensor (CFODS) was introduced and its transmission properties at room temperature (293 K) and liquid nitrogen temperature (77 K) were analyzed comparatively. The analysis shows that this sensor can effectively eliminate environment effects

so it can be used to measure displacement at a large temperature range. The results of measuring suspension micro-displacement of superconducting rotor at liquid helium temperature (4.2 K) demonstrate that it is feasible to measure micro-displacement of objects using the CFODS with measuring resolution about 10 μm at low temperature

which gives some useful reference for the application of the CFODS to cryogenic environment.

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Related Author

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韩立

Related Institution

Anhui Province Key Laboratory of Measuring Theory and Precision Instrument， School of Instrument Science and Opto-Electronics Engineering， Hefei University of Technology

哈尔滨工业大学电气工程及自动化学院自动化测试与控制系2. 东北大学信息科学与工程学院

中国科学院电工研究所

College of Mechatronic Engineering and automation, National University of Defense Technology

National University of Defence Technology

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