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Lookup NU author(s): Professor Gui Yun TianORCiD,
Dr Maxim Morozov
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In pulsed eddy current testing, repetitive excitation signals with different duty cycles have different spectral representations. This work studies the influence of duty cycle on the ability to detect holes and EDM notches beneath rivet heads in subsurface layers of stratified samples. Feature patterns for the integrity of rivet joints are proposed and verified. The proposed method has the added advantage in that no reference sample is needed while employing multiple pulse measurements, with different pulse widths. Experimental testing and modelling approaches are discussed in connection with defect depth quantification, which can be extended to the quantification of complex defects. (C) 2009 Elsevier Ltd. All rights reserved.
Author(s): Abidin IZ, Mandache C, Tian GY, Morozov M
Publication type: Article
Publication status: Published
Journal: NDT & E International
ISSN (print): 0963-8695
ISSN (electronic): 1879-1174
Publisher: Elsevier Ltd
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