ANALYTICAL SOLUTIONS TO EDDY-CURRENT TESTING PROBLEMS FOR A LAYERED MEDIUM WITH VARYING PROPERTIES

Authors
KOLYSHKIN AA VAILLANCOURT R
Citation
Aa. Kolyshkin et R. Vaillancourt, ANALYTICAL SOLUTIONS TO EDDY-CURRENT TESTING PROBLEMS FOR A LAYERED MEDIUM WITH VARYING PROPERTIES, IEEE transactions on magnetics, 33(4), 1997, pp. 2473-2477
Citations number
9
Categorie Soggetti
Engineering, Eletrical & Electronic","Physics, Applied
Journal title
IEEE transactions on magnetics → ACNP
ISSN journal
00189464
Volume
33
Issue
4
Year of publication
1997
Pages
2473 - 2477
Database
ISI
SICI code
0018-9464(1997)33:4<2473:ASTETP>2.0.ZU;2-A
Abstract
A one-parameter family of analytical solutions is found for the case w here a single-turn coil is located above a two-layer conducting medium . The conductivity a and the relative magnetic permeability mu of the upper conducting layer are constants; while for the lower conducting h alf-space; these are of the form sigma(z) = Az(b) and mu(z) = Bz(a), w here A and B are constants and a + b = -2 of a + b = 0. The change in impedance is computed, and the results of numerical simulation are pre sented.