A fast model of eddy-current ferrite-cored probes for NDE
Résumé
The modelling of the response of a time-harmonic, eddy-current ferrite-cored probe to a 3D flaw in a conductive multilayered, non-magnetic workpiece is aimed at. The first step, which is considered herein, is the calculation of the impedance of an axisymmetric probe and of the corresponding primary field distributions in the magnetic core and the tested workpiece in the absence of flaw.