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Proceedings Paper

FBG monitoring on a viaduct of urban railway
Author(s): Weilai Li; Jin Pang; Xiaoshan Lu; Jie Liu; Ciming Zhou
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Paper Abstract

Fiber Bragg Grating (FBG) sensing technology was used to monitor a crevice of continuous beam joint and rails near rail expansion devices on a viaduct. The monitoring items consisted of rail temperature, rail displacement, viaduct beam displacement, and strain of sliding rail of rail expansion device. Strain sensor was a prefabricate FBG strain gauge; displacement sensor with different scale used a FBG stress ring; and the FBG of temperature sensor was pre-drawn and fixed in a metal tube. The monitoring results matched to the manual testing and theoretical estimate.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892439 (15 October 2013); doi: 10.1117/12.2031548
Show Author Affiliations
Weilai Li, Wuhan Univ. of Technology (China)
Jin Pang, Wuhan Univ. of Technology (China)
Xiaoshan Lu, Wuhan Univ. of Technology (China)
Jie Liu, Wuhan Univ. of Technology (China)
Ciming Zhou, Wuhan Univ. of Technology (China)


Published in SPIE Proceedings Vol. 8924:
Fourth Asia Pacific Optical Sensors Conference
Minghong Yang; Dongning Wang; Yun-Jiang Rao, Editor(s)

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