| 光纤光栅在液氮温区温度传感性能的研究 |
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| 引用本文： | 蔡国利,简伟. 光纤光栅在液氮温区温度传感性能的研究[J]. 光通信研究, 2006, 32(6): 56-57 |
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| 作者姓名： | 蔡国利 简伟 |
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| 作者单位： | 北京交通大学,光波技术研究所,北京,100044;北京交通大学,光波技术研究所,北京,100044 |
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| 摘 要： | 文章从光纤光栅的温度传感模型出发,理论分析了光纤光栅的温度传感特性,完成了在液氮温区(-196 ℃)的温度测量.将理论与实验结果进行对比分析后得知,在液氮温区或者大范围测温中,反射波长相对漂移量ΔλB/λB与温度改变量ΔT的关系是非线性的,呈二次关系式.
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| 关 键 词： | 光纤布拉格光栅 光纤传感 温度传感 液氮温区 |
| 文章编号： | 1005-8788（2006）06-0056-02 |
| 收稿时间： | 2006-05-18 |
| 修稿时间： | 2006-05-18 |
Experiment on FBG temperature sensor in cryogenic environment |
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| Cai Guoli,Jian Wei. Experiment on FBG temperature sensor in cryogenic environment[J]. Study on Optical Communications, 2006, 32(6): 56-57 |
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| Authors: | Cai Guoli Jian Wei |
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| Affiliation: | Lightwave Technology Institute, Beijing Jiaotong University, Beijing 100044, China |
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| Abstract: | A theoretical method for Fiber Bragg Grating (FBG) temperature sensing has been proposed. Based on a temperature sensing model of FBG, a temperature sensing experiment is conducted at liquid nitrogen temperature (-196 ℃). The theoretical and experimental results are compared and analyzed, which shows that at liquid nitrogen temperature or in large -scope temperature sensing, the relationship between the temperature variation ΔT and the relative shift of the reflected center wavelength ΔλB/λB of FBG is nonlinear and conic multinomial. |
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| Keywords: | FBG optical fiber sensing temperature sensing liquid nitrogen temperature |
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