A Discussion of the Inverse Problem in Electromagnetic NDT

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1986
Authors
Udpa, L.
Lord, W.
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Abstract

The principal components of a nondestructive testing (NDT) system are shown in Figure 1. The specimen to be tested is energized by a transmitting transducer. The response of the energy-specimen interaction is picked up by a receiving transducer. This signal is then processed suitably and analyzed for defect characterization. The most critical step here is the inverse problem which involves the characterization of the specimen parameters given an NDT probe response signal. This paper is mainly concerned with the solution of the inverse problem.

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