The eddy current probe as a holographic transducer

descriptionPublicationkeyboard_double_arrow_right Article 01 Dec 1993 English Publisher:Springer Science and Business Media LLCJournal:Journal of Nondestructive Evaluation, volume 12, pages 209-217 (issn: 0195-9298, eissn: 1573-4862,

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Authors: J. M. Prince; B. P. Hildebrand; G. L. Hower;

doi: 10.1007/bf00568106

The eddy current probe as a holographic transducer

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Abstract

Experimental work with the application of holography to eddy current imaging has previously been performed. This paper presents a theoretical analysis of the holographic imaging characteristics of the eddy current probe. A specially shaped probe design has been developed during this analysis for enhanced imaging performance. The phase multiplied holographic imaging process is explained and demonstrated. Experimental data are presented confirming the theoretical analysis and thus the eddy current probe as a viable holographic transducer.

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