Rail Crack Detection by Analyzing the Acoustic Transmission Process Based on Fiber Distributed Acoustic Sensor

Cunzheng Fan,Fan Ai,Yijie Liu,Zhijie Xu,Geng Wu,Wei Zhang,Chen Liu,Zhijun Yan,Deming Liu,Qizhen Sun

Rail Crack Detection by Analyzing the Acoustic Transmission Process Based on Fiber Distributed Acoustic Sensor

2019

Cunzheng Fan
Fan Ai
Yijie Liu
Zhijie Xu
Geng Wu
Wei Zhang
Chen Liu
Zhijun Yan
Deming Liu
Qizhen Sun

A method for rail crack detection by analyzing sound wave generated by the interaction between wheel and crack is proposed. Field tests verify the feasibility with maximum locating error of 2.1m.

Keywords:

Image processing
Wave propagation
Image resolution
Fiber
Optics
Optical fiber cable
Engineering
acoustic transmission
sound wave
acoustic sensor

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