Design and Implementation of Rail Flaw Detector Based on Eddy Current---A kind of accurate and efficient non-destructive flaw detection for rail transit
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DOI: 10.23977/iset2021.033
Author(s)
Zelin Yin, Qinxu Yu
Corresponding Author
Zelin Yin
ABSTRACT
The rapid development of rail transit puts forward higher requirements for rail inspection. In this paper, a kind of eddy current sensor is used to design a track flaw detector which can realize high-speed detection. The two eddy current sensors are placed one after the other at a fixed interval. When the train is running at a constant speed, the sensors perform detection in sequence. The two sensors measure the signal at a fixed point at a fixed time interval. When both sensors measure a crack signal at a certain point, the detector will give an alarm and determine its location to improve the reliability of detection.
KEYWORDS
Eddy current sensor, orbit, vehicle