Simultaneous measurement of temperature and strain by using a wide-band fiber Bragg grating

被引：0
|
作者：
Xian, Lunlun [1 ]
Wang, Peng [2 ]
Li, Hongpu [2 ]
机构：
[1] Nanjing Univ Sci & Technol, Nanjing, Jiangsu, Peoples R China
[2] Shizuoka Univ, Hamamatsu, Shizuoka 4328561, Japan
来源：
AOPC 2015: OPTICAL FIBER SENSORS AND APPLICATIONS | 2015年 / 9679卷
关键词：
Fiber Bragg grating; simultaneous temperature and strain measurement; power-interrogated sensor; SENSORS; DISCRIMINATION; WRITTEN;
D O I：
10.1117/12.2205659
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 power-interrogated sensor that allows for the simultaneous measurement of temperature and strain is proposed and experimentally demonstrated. The sensor is based on the use of a linearly chirped fiber Bragg grating (FBG) with a broad (similar to 10 nm) as well as slant reflection spectrum. Unlike most of the previous FBG-based sensors, the FBG proposed here is simultaneously used as both the sensing and the interrogating element. The measurement accuracies for the temperature and the strain are estimated to be +/- 2 degrees C in the range of 12-197 degrees C and +/- 24 mu epsilon in the range of 0-1270 mu epsilon, respectively.
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页数：7
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