光子学报

• 光学传感器 • 上一篇    下一篇

铝槽封装光纤光栅传感器的增敏特性研究

詹亚歌;蔡海文;耿建新;瞿荣辉;向世清;王向朝   

  1. (中国科学院上海光学精密机械研究所信息光学实验室,上海 201800)
  • 收稿日期:2003-07-16 修回日期:1900-01-01 出版日期:2004-08-25 发布日期:2004-08-25
  • 通讯作者: 詹亚歌 E-mail:zhanygdove@163.com

Study on Aluminum Groove Encapsulating Technique and Sensing Characteristics of FBG Sensor

Zhan Yage;Cai Haiwen;Geng Jianxin;Qu Ronghui;Xiang Shiqing;Wang Xiangzhao   

  1. (Shanghai Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Shanghai 201800)
  • Received:2003-07-16 Revised:1900-01-01 Online:2004-08-25 Published:2004-08-25
  • Contact: Zhan Yage E-mail:zhanygdove@163.com

摘要: 提出了一种光纤布喇格光栅的铝槽封装工艺,并对铝槽封装光纤光栅传感器的应变与温度传感特性进行了实验研究和理论分析.与裸光纤光栅的测试结果比较表明,铝槽封装工艺基本不改变光纤光栅应变传感的灵敏性,但是温度灵敏度系数提高了3.5倍.经过该工艺封装的光纤光栅可以探测识别0.2 με的应变与0.02℃的温度变化.

关键词: 传感器, 光纤光栅, 应变传感

Abstract: In consideration of bare optical fiber being fragility,the aluminum groove encapsulating technique for fiber Bragg grating (FBG) sensor was developed ,and then the strain and temperature sensing characteristics of the encapsulated FBG sensor were experimentally and theoretically studied. The comparison of results between encapsulated FBG sensor and bare FBG sensor indicted that the strain sensing property of the FBG sensor are nearly same as that of bare FBG,however the temperature sensing ability of encapsulated FBG sensor is improved and the sensitivity coefficient is 3.5 times as much as that of bare FBG. The strain and temperature sensing resolution of the encapsulated FBG sensor are 0.2 με and 0.02℃,respectively. The encapsulated FBG is proper for application in civil engineering.

Key words: 温度传感, Sensor, Fiber Bragg grating, Strain sensing, Temperature sensing

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