High spatial resolution distributed strain sensor based on linear chirped fiber Bragg grating and fiber loop ringdown spectroscopy.
High spatial resolution distributed strain sensor based on linear chirped fiber Bragg grating and fiber loop ringdown spectroscopy.
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DOI:
10.1364/ol.36.000879
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发表时间:
2011-03
期刊:
影响因子:
3.6
通讯作者:
J. Gan;Yun-qi Hao;Q. Ye;Z. Pan;H. Cai;R. Qu;Z. Fang
中科院分区:
文献类型:
--
作者:
J. Gan;Yun-qi Hao;Q. Ye;Z. Pan;H. Cai;R. Qu;Z. Fang
A simple sensor system for high spatial resolution distributed strain field measurement is proposed and demonstrated experimentally. The fiber loop ringdown technique combined with a linear chirped fiber Bragg grating is used to realize the high spatial resolution. A proof-of-concept distributed strain sensor with 2 mm spatial resolution is realized. The sensor network is also explored and researched experimentally. The proposed technique suggests a broad range of applications for real-time distributed physical parameter sensing, such as strain or temperature.