FBG温度传感器交叉敏感问题的研究

大气与环境光学学报 ›› 2016, Vol. 11 ›› Issue (3): 226-233.

FBG温度传感器交叉敏感问题的研究

张登攀?1，郑艳1, 王瑨2, 王永杰3

（1.河南理工大学机械与动力工程学院，河南焦作 454000；
2.河南理工大学万方科技学院信息科学与工程系，河南郑州 451400；
3.中国科学院半导体研究所光电系统实验室，北京 100083）

收稿日期:2015-11-30 修回日期:2016-01-07 出版日期:2016-05-28 发布日期:2016-05-25
通讯作者: 张登攀(1975-)，男(汉族)，河南省平顶山市人，博士，副教授，主要研究方向：精密测量技术及仪器。 E-mail:zhangdengpan@hpu.edu.cn
作者简介:张登攀(1975-)，男(汉族)，河南省平顶山市人，博士，副教授，主要研究方向：精密测量技术及仪器。
基金资助:
Supported by National Nature Science Foundation of China(国家自然科学基金, 41276094）, Strategic Priority Research Program of the Chinese Academy of Sciences(中国科学院战略性先导科技专项A, XDA110-40201)

Investigation of Cross-Sensitivity of Fiber Bragg Grating Temperature Sensor

ZHANG Dengpan1, ZHENG Yan1, WANG Jin2, WANG Yongjie3

(1.School of Mechanical & Power Engineering, Henan Polytechnic University, Jiaozuo 454000, China;
2.Department of Information Science and Engineering, Wanfang College of Science & Technology, Henan Polytechnic University, Zhengzhou 451400,China;
3. Optoelectronic System Lab, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China)

Received:2015-11-30 Revised:2016-01-07 Published:2016-05-28 Online:2016-05-25

摘要/Abstract

摘要：

基于光纤布拉格光栅(FBG)传感器的温度应变交叉敏感原理，提出了一种新型的高灵敏度FBG温度传感器封装方法，该封装方法通过在金属管内设置弹簧进行预应力封装，完全隔绝外界压力对FBG温度传感器测温的影响，可有效地解决温度和应变对FBG温度传感器交叉敏感的问题，同时提高FBG温度传感器的温度灵敏度。对封装后的光纤光栅温度传感器进行温度特性测试和温度应力交叉敏感测试实验，结果表明，传感器中心波长的变化仅由温度变化引起，不受压力变化的影响。另外，该传感器表现出较好的线性度和重复性，可以达到准确测量温度的目的。

关键词: 光纤布拉格光栅, 温度, 传感器, 交叉敏感, 封装

Abstract:

Based on the cross-sensitivity of fiber Bragg grating temperature sensor，a new encapsulation method of high sensitivity of FBG temperature sensor is proposed. By setting a spring in the metal tube, the temperature was measured with pressure isolated. The purpose is to enhance the temperature sensitivity coefficient of FBG and to eliminate cross-impact of stress. Through experiments, the temperature characteristics and stress impact of packaged FBG are introduced. The results show that the wavelength offset is only caused by the change of temperature which is not influenced by the peripheral pressure. Meanwhile, the packaged FBG has good linearity and repeatability, which can be used to monitor temperature accurately.

Key words: fiber Bragg grating, temperature, sensor, cross-sensitivity, encapsulation

中图分类号:

TP21

张登攀郑艳王瑨王永杰. FBG温度传感器交叉敏感问题的研究[J]. 大气与环境光学学报, 2016, 11(3): 226-233.

ZHANG Deng-Pan, ZHENG Yan, WANG Jin, WANG Yong-Jie. Investigation of Cross-Sensitivity of Fiber Bragg Grating Temperature Sensor[J]. Journal of Atmospheric and Environmental Optics, 2016, 11(3): 226-233.

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