Application of a Computer Model to Electric Current Perturbation Probe Design

The purpose of this paper is to illustrate, by means of two examples, how computer models of electromagnetic NDE probes can be used as an aid in probe design and applications. The type of probe we will consider is of the electric current perturbation (ECP) design, and the computer models employed are those described elsewhere1, which were developed for ECP analyses. While the numerical results we present are therefore specific to the ECP probe, the suggestion that computer models be used to answer design or implementation questions is applicable to any electromagnetic probe, given an appropriate model