Crack detection and recognition using an eddy current differential probe

Authors
Chady, T Enokizono, M Sikora, R
Citation
T. Chady et al., Crack detection and recognition using an eddy current differential probe, IEEE MAGNET, 35(3), 1999, pp. 1849-1852
Citations number
4
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
IEEE TRANSACTIONS ON MAGNETICS
ISSN journal
00189464 → ACNP
Volume
35
Issue
3
Year of publication
1999
Part
1
Pages
1849 - 1852
Database
ISI
SICI code
0018-9464(199905)35:3<1849:CDARUA>2.0.ZU;2-W
Abstract
This paper proposes a new eddy current differential sensor and a system for multi-frequency testing of conducting plates. Precise crack imaging was ac hieved by the use of spectrograms obtained from an eddy-current probe multi frequency response and application of a neural network. Results of experime nts with test specimens made of SUS304 showing very good sensitivity and sp atial resolution are presented. The possibility of detection of an opposite side 20% crack was also confirmed.