An embedded FBG sensor for simultaneous measurement of stress and temperature

被引：114

作者：

Jin, L ^{[1
]}

Zhang, WG ^{[1
]}

Zhang, H ^{[1
]}

Liu, B ^{[1
]}

Zhao, H ^{[1
]}

Tu, QC ^{[1
]}

Kai, GY ^{[1
]}

Dong, XY ^{[1
]}

机构：

[1] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2006年 / 18卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

chirped fiber grating; fiber Bragg grating (FBG); polymer; fiber Bragg grating (FBG) sensor; simultaneous measurement;

D O I：

10.1109/LPT.2005.860046

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 [电气工程]; 0809 [电子科学与技术];

摘要：

An embedded fiber Bragg grating (FBG) sensor for simultaneous measurement of stress and temperature is proposed, where a uniform FBG is capsulated in a tapered polymer so that the grating is linearly chirped when the sensor is stressed. The value of applied stress and temperature can be obtained by measuring the chirp and central wavelength via a coefficient matrix. Experimental results demonstrate that the sensor has a stress sensitivity of 2.62 x 10(-3) nm/N and a temperature sensitivity of 0.108 nm/degrees C. Since the FBG is well protected and no sudden strain change is imposed on it, the sensor is expected to have an excellent reliability.

引用

页码：154 / 156

页数：3

共 9 条

[1]

Simultaneous measurement of axial strain, temperature, and transverse load by a superstructure fiber grating [J].