A novel fiber Bragg grating sensor for weak pressure measurement based on the Stokes parameter

被引：15

作者：

Peng, Hui ^{[1
,3
]}

Su, Yang ^{[2
]}

Ye, Zhengxing ^{[2
]}

Zhou, Bihua ^{[1
]}

机构：

[1] PLA Univ Sci & Tech, Natl Key Lab Electromagnet Environm Effects & Ele, Nanjing 21007, Jiangsu, Peoples R China

[2] PLA Univ Sci & Tech, Inst Commun Engn, Nanjing 21007, Jiangsu, Peoples R China

[3] PLA, Haikou, Hainan, Peoples R China

来源：

OPTICAL FIBER TECHNOLOGY | 2012年 / 18卷 / 06期

关键词：

Pressure sensor; Fiber Bragg grating; Stokes parameter; Dual-wavelength analytical; STRAIN; TEMPERATURE;

D O I：

10.1016/j.yofte.2012.07.019

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：

Unlike usual spectral analysis of the fiber Bragg grating (FBG) sensors, a novel weak pressure sensor based on the Stokes parameter of FBG is proposed in this paper. The evolution of the first normalized Stokes parameter s(1) with respect to pressure is studied theoretically and experimentally. A theoretical model for pressure sensing by use of s1 is built and numerically simulation is also carried out. The dual-wavelength analytical method is proposed to reduce the influence of Bragg wavelength drift and improve the measurement accuracy. Under the pressure conditions of 0-5 N, the experimental pressure sensitivity is 0.0754/N. Good agreements between experiment results and numerical simulations verify the feasibility of the method. (C) 2012 Elsevier Inc. All rights reserved.

引用

页码：485 / 489

页数：5

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