Discrimination between temperature and strain based on a simple FBG sensor

Shaohua H. Chen; Qida Zhao; Xiurong Ma; Ying Chen; Xiaoyi Dong

doi:10.1117/12.521655

30 April 2004 Discrimination between temperature and strain based on a simple FBG sensor

Shaohua H. Chen, Qida Zhao, Xiurong Ma, Ying Chen, Xiaoyi Dong

Proceedings Volume 5279, Optical Fibers and Passive Components; (2004) https://doi.org/10.1117/12.521655
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China

Abstract

In the paper, a simple and effective FBG sensor able to discriminate temperature from strain at a single point had been worked out, by sticking half of it on the fixed end of the polymer equivalent beam, leaving the other half free. The FBG was then separated into two segments with different temperature and strain coefficients, which composed the measuring matrix. The measuring sensitivities of temperature and strain of our setup are 9.58×10^-6(1/°C) and 6.72×10^-7(1/με) respectively. This device will have wide applications to discriminate between strain and temperature of sensing networks.

Citation Download Citation

Shaohua H. Chen, Qida Zhao, Xiurong Ma, Ying Chen, and Xiaoyi Dong "Discrimination between temperature and strain based on a simple FBG sensor", Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004); https://doi.org/10.1117/12.521655

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