15 October 2013 FBG monitoring on a viaduct of urban railway
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Proceedings Volume 8924, Fourth Asia Pacific Optical Sensors Conference; 892439 (2013) https://doi.org/10.1117/12.2031548
Event: Asia Pacific Optical Sensors Conference 2013, 2013, Wuhan, China
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.
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Weilai Li, Jin Pang, Xiaoshan Lu, Jie Liu, Ciming Zhou, "FBG monitoring on a viaduct of urban railway", Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 892439 (15 October 2013); doi: 10.1117/12.2031548; https://doi.org/10.1117/12.2031548

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