Enhancing information level in eddy-current non-destructive inspection

Issue title: Selected Papers from the 14th International Symposium on Applied Electromagnetics and Mechanics (ISEM 2009), Part II

Article type: Research Article

Authors: Janousek, Ladislav^{a; *} | Smetana, Milan^a | Capova, Klara^a

Affiliations: [a] Department of Electromagnetic and Biomedical Engineering, Faculty of Electrical Engineering, University of Zilina, Univerzitna 1, 010 26 Zilina, Slovak Republic

Correspondence: [*] Corresponding author. Tel.: +421 41 5132145; Fax: +421 41 5131519; E-mail: janousek@fel.uniza.sk

Abstract: The paper focuses on increasing information level of response signals in eddy-current non-destructive inspection. A new eddy-current detection system is proposed in the study for enhancing quantitative evaluation of an indicated defect. It is composed of three circular inductance coils positioned perpendicularly to each other. The system allows sensing all of the three spatial components of the perturbation electromagnetic field. Thus more complex information about an inspected defect is gained. Numerical simulations are carried out and the results are evaluated to demonstrate capabilities of the new system in reducing the ambiguity of crack sizing using eddy-current non-destructive inspection.

Keywords: Non-destructive inspection, eddy-currents, detection system, response signals, information level, crack sizing

DOI: 10.3233/JAE-2010-1232

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 33, no. 3-4, pp. 1149-1155, 2010