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- W2357230854 abstract "Pulsed eddy current(PEC) testing technique adopts a periodic rectangle wave as the excitation signal of eddy current sensors,thus testing signals can be analyzed both in time domain and in frequency domain.The current research work focused on amplitude-frequency characteristic in frequency domain.The periodic rectangle wave could be considered as a signal composed of multi-frequency unequal amplitude sine signals,and this paper studied the amplitude-frequency characteristic and the phase-frequency characteristic of PEC testing signals.According to the spectrum characteristic of signals in pulsed eddy testing,spectrum relative variation in amplitude-frequency spectrum and phase cross zero point in phase-frequency spectrum were respectively proposed to classify different types of defects.Pulsed eddy testing experiments verify the correctness of the proposed method." @default.
- W2357230854 created "2016-06-24" @default.
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- W2357230854 date "2011-01-01" @default.
- W2357230854 modified "2023-09-25" @default.
- W2357230854 title "Spectrum Analysis and Defect Classification of Pulsed Eddy Current Testing" @default.
- W2357230854 hasPublicationYear "2011" @default.
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