Reconstruction of planar magnetic charge distribution

Issue title: Proceedings of the tenth International Symposium on Applied Electromagnetics and Mechanics ISEM-Tokyo

Article type: Research Article

Authors: Igarashi, Hajime^{a; *} | Kost, Arnulf^b | Honma, Toshihisa^a

Affiliations: [a] Graduate School of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, 060-8628, Japan | [b] Brandenburg Technical University of Cottbus, Germany

Correspondence: [*] Corresponding author: Hajime Igarashi, Tel.: +81 11 706 6486; Fax: +81 11 709 6280; E-mail: iga@em-si.eng.hokudai.ac.jp

Abstract: This paper discusses reconstruction of magnetic charge distribution on a planar region for non-destructive evaluation. Reconstruction is performed by using the magnetic fields measured on a plane above the charge region as input data. The present method needs only one matrix inversion whose computational time is expected to be shorter than the method based on optimization processes. It is shown that the reconstruction is successful when the unknown vector is appropriately regularized in order that the corresponding singular vectors become smooth. The L-curve method works well for determination of the value of the regularization parameter.

DOI: 10.3233/JAE-2002-509

Journal: International Journal of Applied Electromagnetics and Mechanics, vol. 15, no. 1-4, pp. 257-260, 2002