| 光纤位移传感器在77和4.2 K下的输出特性研究 |
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| 引用本文： | 胡新宁,王秋良,崔春艳,韩立,谢亮. 光纤位移传感器在77和4.2 K下的输出特性研究[J]. 光电子．激光, 2009, 20(3) |
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| 作者姓名： | 胡新宁 王秋良 崔春艳 韩立 谢亮 |
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| 作者单位： | 胡新宁,崔春艳,HU Xin-ning,CUI Chun-yan(中国科学院应用超导重点实验室,中国科学院电工研究所,北京,100190;中国科学院研究生院,北京,100039);王秋良,韩立,WANG Qiu-liang,HAN Li(中国科学院应用超导重点实验室,中国科学院电工研究所,北京,100190);谢亮,XIE Liang(中国科学院半导体研究所,北京,100080) |
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| 摘 要： | 介绍了一种可用于低温装置内的补偿式光纤位移传感器(CFODS),讨论了该传感器在低温下的输出特性并在液氮温度(77 K)和液氦温度(4.2 K)下进行了实验研究.结果表明,该传感器在液氮温度下的灵敏度0.311 mm-1,高于液氦温度下的灵敏度0.278 mm-1.
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| 关 键 词： | 光纤传感器 低温 半导体 微位移 |
Study of output properties of fiber optic displacement sensor at the 77 and 4.2 K environment |
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| HU Xin-ning,WANG Qiu-liang,CUI Chun-yan,HAN Li,XIE Liang. Study of output properties of fiber optic displacement sensor at the 77 and 4.2 K environment[J]. Journal of Optoelectronics·laser, 2009, 20(3) |
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| Authors: | HU Xin-ning WANG Qiu-liang CUI Chun-yan HAN Li XIE Liang |
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| Affiliation: | 1.Key Laboratory of Applied Superconductivity;Institute of Electrical Engineering;Chinese Academy of Sciences;Beijing 100190;China;2.Graduate School of the Chinese Academy of Sciences;Beijing 100039;3.Institute of Semiconductors;Beijing 100083;China |
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| Abstract: | A compensated fiber optic displacement sensor(CFODS) which can be applied in the cryogenic instrument was introduced.The output properties of the CFODS at liquid nitrogen temperature (77 K) and liquid helium temperature (4.2 K) were studied. It is found that the sensitivity of the CFODS is0.311 mm-1 at 77 K that is higher than 0.278 mm-1 at 4.2 K. |
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| Keywords: | fiber optic sensor cryogenics semiconductor micro-displacement |
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