Photonic Sensors, 2014, 4 (3): 269, 网络出版: 2014-07-10  

FBG Stress-Sensibilized Monitor for Railway Switch Pole On-Line Monitoring

FBG Stress-Sensibilized Monitor for Railway Switch Pole On-Line Monitoring
作者单位
1 National Engineering Lab of Fiber Optic Sensing Technology, Wuhan University of Technology, Wuhan, 430070, China
2 Key Lab of Fiber Optic Sensing Technology and Information Processing, Ministry of Education, Wuhan University of Technology, Wuhan, 430070, China
摘要
Abstract
The fiber Bragg grating (FBG) sensing technology is 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. This paper presents the design and implementation of a railway switch pole strain on-line monitoring system based on the FBG stress-sensibilized monitor for a Siemens S700K switch machine. The ring shape FBG strain gauge and stress-sensibilized methods significantly increased the monitoring sensitivity. Installing approaches adapted the harsh environment in the railway application. The monitoring results showed the high sensitivity and high reliability of this monitoring system. This application provides a long-term and on-line detecting method which could meet railway switch condition monitoring demands of more than 100,000 switch machines in the country.

Weilai LI, Jie LIU, Jianjun PAN, Jin PANG, Xiaoshan LU. FBG Stress-Sensibilized Monitor for Railway Switch Pole On-Line Monitoring[J]. Photonic Sensors, 2014, 4(3): 269. Weilai LI, Jie LIU, Jianjun PAN, Jin PANG, Xiaoshan LU. FBG Stress-Sensibilized Monitor for Railway Switch Pole On-Line Monitoring[J]. Photonic Sensors, 2014, 4(3): 269.

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