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Yesudasu Bammidi,Chandra S Angani,K Sambasiva Rao,M. B. Kishore,G. Krishna Podagatlapalli,S. Sreedhar 한국자기학회 2022 Journal of Magnetics Vol.27 No.2
Failures in the industrial components are unavoidable due to material degradation from various sources, thus continuous monitoring and timely inspection is mandatory for structural safety. In the present study, the recently developed Transient Eddy Current Oscillations (TECO) method is used to detect wall-thinning in a stainless-steel plate. Unlike the conventional Eddy Current Testing impedance plane data a new interpretation method has been implemented to identify a thickness variation using the S-domain parameters. Furthermore, time and frequency spectral features are analysed to get more insight into the results. The decay time and the resonant frequency are the basis for the discussion to assess the wall thickness.