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30 April 2004 Fiber grating sensors system for civil structural stain monitoring
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Proceedings Volume 5279, Optical Fibers and Passive Components; (2004)
Event: Asia-Pacific Optical and Wireless Communications, 2003, Wuhan, China
Based on matched fiber grating interrogation scheme, a fiber grating strain sensors system has been proposed and experimentally demonstrated on an equivalent-strength cantilever beam model, which can be deployed for civil structural strain and mechanical vibration simultaneous detection. Through special designing of sensor head, the temperature cross-sensitivity in strain sensing has been automatically removed. A common-path reference measurement structure has been used, so measurement errors caused by fluctuation of losses in the system or the light source power has been effectively eliminated, and the long-term stability of sensor system has been improved.
© (2004) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Haiwen Cai, Zhiping Xia, Jianxin Geng, Yan Zhang, and Hongliang Cui "Fiber grating sensors system for civil structural stain monitoring", Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004);


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