Fiber Bragg grating cavity sensor for simultaneous measurement of strain and temperature

被引：146
|
作者：
Du, WC
Tao, XM
Tam, HY
机构：
[1] Hong Kong Polytech Univ, Inst Text & Clothing, Hong Kong, Peoples R China
[2] Hong Kong Polytech Univ, Dept Elect Engn, Hong Kong, Peoples R China
[3] S China Normal Univ, Canton, Peoples R China
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1999年 / 11卷 / 01期
关键词：
fiber Bragg grating; FP cavity; simultaneous measurement of strain and temperature;
D O I：
10.1109/68.736409
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel and short (5 mm long) fiber grating based sensor with a fiber grating Fabry-Perot cavity (GFPC) structure was fabricated and tested for simultaneous measurement of strain and temperature. The sensor exhibits unique properties that it possesses two spectral peaks within its main reflection band and the normalized peak power difference, in addition to its peak wavelength shift, changes linearly with strain or temperature. The accuracy of this particular sensor in measuring strain and temperature are estimated to be +/- 30 mu epsilon in a range from 0 to 3000 mu epsilon and +/-0.4 degrees C from 20 degrees C to 60 degrees C, respectively.
引用
收藏
页码：105 / 107
页数：3
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