Characterization of defects on rail surface using eddy current technique
作者： M. B. Kishore , J. W. Park , S. J. Song , H. J. Kim , Se Gon Kwon
DOI: 10.1007/S12206-019-0816-X
关键词:
摘要: In the present study, using eddy current technique (ECT), we explored two kinds of defects commonly found in railroad monitoring. The first one is cracks initiated on surface rail head which slowly progresses into vertical plane, second squat type grown running surface. A reliable ECT system equipped with plus point probe was developed and experiments were conducted a 10 mm thick medium carbon steel plate machined varying their dimensions. An optimized fabricated for experimental purpose Lab VIEW based program to interactively collect analyze obtained data. Predefined (slit, squat) changing defect depth length both cases S45C examined. Prior experiments, simulation studies fully understand dimensions parameters. Response signal parameters, amplitude phase analyzed characterize features. designed shows better performance detect deepest up 5 approximately, it can be extended further moderate noise ratio. Two categorized according signals.
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