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Proceedings Paper

FBG strain sensibilized monitor on railway switch pole
Author(s): Weilai Li; Jie Liu; Jianjun Pan; Jin Pang; Xiaoshan Lu; Ciming Zhou
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Paper Abstract

Fiber Bragg Grating (FBG) sensing technology was used to dynamically monitor multiple parameters of railway switch machine poles, including time of movement, direction and quantity of loading and locking force, and states of loading resistance. Ring shape FBG strain gauge and strain sensibilized methods significantly increased the monitoring sensitivity. Installing approaches adapted the harsh environment in railway application. The monitoring results showed that for a Siemens S700K switch machine, its pole pressured stroke took 5s. Maximum load: -5.9kN, average load: -3.3kN. Vibration caused by resistance exists, its period: 0.1s, range: 0.5kN~1.6kN. After the stroke, the locking force was kept at -0.6kN. In tensile stroke, it also took 5s. Maximum load: 6.8kN, average load: 5.5kN. Vibration period: 0.1s, range: 0.7kN~2kN. Locking force: 0.2 kN. This long-term and on-line detecting method could meet railway switch condition monitoring demands of more than 100,000 switch machines in this country.

Paper Details

Date Published: 15 October 2013
PDF: 4 pages
Proc. SPIE 8924, Fourth Asia Pacific Optical Sensors Conference, 89243F (15 October 2013); doi: 10.1117/12.2034166
Show Author Affiliations
Weilai Li, Wuhan Univ. of Technology (China)
Jie Liu, Wuhan Univ. of Technology (China)
Jianjun Pan, Wuhan Univ. of Technology (China)
Jin Pang, Wuhan Univ. of Technology (China)
Xiaoshan Lu, 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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