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The Monotonicity Imaging Method for PECT
Antonello Tamburrino, Zhiyi Su, Naiguang Lei, Lalita Udpa, Satish Udpa
159 - 166
10.3233/978-1-61499-509-8-159
Studies in Applied Electromagnetics and Mechanics
Volume 40: Electromagnetic Nondestructive Evaluation (XVIII)
Abstract

This paper is focused on the non-iterative imaging of defects in a conductive material using pulsed eddy current testing. The approach for imaging is based on the monotonicity of the time constants of the natural modes of eddy current induction phenomenon. The hypothesis is proved numerically with the help of a finite element model. This result makes it possible to apply a real-time non-iterative imaging algorithm, initially developed for elliptic problems such as electrical resistance tomography, to a parabolic problem such as eddy current testing.

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