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Proceedings Paper

Fiber grating sensors system for civil structural stain monitoring
Author(s): Haiwen Cai; Zhiping Xia; Jianxin Geng; Yan Zhang; Hongliang Cui
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Paper Abstract

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.

Paper Details

Date Published: 30 April 2004
PDF: 6 pages
Proc. SPIE 5279, Optical Fibers and Passive Components, (30 April 2004); doi: 10.1117/12.521668
Show Author Affiliations
Haiwen Cai, Shanghai Institute of Optics and Fine Mechanics (China)
Zhiping Xia, Shanghai Institute of Optics and Fine Mechanics (China)
Jianxin Geng, Shanghai Institute of Optics and Fine Mechanics (China)
Yan Zhang, Stevens Institute of Technology (United States)
Hongliang Cui, Stevens Institute of Technology (United States)

Published in SPIE Proceedings Vol. 5279:
Optical Fibers and Passive Components
Steven Shen; Shuisheng Jian; Katsunari Okamoto; Kenneth L. Walker, Editor(s)

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