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Pulsed eddy current testing with variable duty cycle on rivet joints

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.

Publication metadata

Author(s): Abidin IZ, Mandache C, Tian GY, Morozov M

Publication type: Article

Publication status: Published

Journal: NDT & E International

Year: 2009

Volume: 42

Issue: 7

Pages: 599-605

ISSN (print): 0963-8695

ISSN (electronic): 1879-1174

Publisher: Elsevier Ltd


DOI: 10.1016/j.ndteint.2009.04.001


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Funder referenceFunder name
Royal Society, UK
Defence Research and Development Canada