Tunable fiber laser based fiber Bragg grating strain sensor demodulation system with enhanced resolution by digital signal processing

被引：7
|
作者：
Yun, Binfeng [1 ]
Wang, Yiping [1 ]
Li, Anmin [1 ]
Cui, Yiping [1 ]
机构：
[1] Southeast Univ, Adv Photon Ctr, Nanjing 210096, Peoples R China
来源：
MICROWAVE AND OPTICAL TECHNOLOGY LETTERS | 2006年 / 48卷 / 07期
关键词：
fiber Bragg grating sensor; tunable laser; digital signal processing;
D O I：
10.1002/mop.21638
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 fiber Bragg grating strain sensor demodulation system based on the it laser (WTFRL) is developed. The finite impulse response (FIR) digital filler and the centriod detection algorithm (CDA) are implemented to reduce the system noises and to improve the resolution of the Bragg wavelength-shifts detection. The experiments show that with this signal processing technique, the resolution of the fiber Bragg grating (FBG) strain sensor is 1.39 mu epsilon, which is much better than the resolution (10.1 mu epsilon) of the direct peak-detection method. (c) 2006 Wiley Periodicals. Inc.
引用
收藏
页码：1391 / 1393
页数：3
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