Vol. 100, Issue 1, January 2009, pp.92-115

A Review of Material Properties Estimation Using Eddy Current Testing and Capacitor Imaging

Mohd. Amri Yunus, S. C. Mukhopadhyay and G. Sen Gupta

School of Engineering and Advanced Technology

Massey University, Palerston North, New Zealand

E-mail: S.C.Mukhopadhyay@massey.ac.nz

Received: 7 December 2008   /Accepted: 19 January 2009   /Published: 26 January 2009

Abstract: The non destructive testing applications based on inductive (eddy current testing) and capacitive sensors are widely used for imaging of material properties. The simple structure, safe to use, low cost, non contact application, good response at medium range frequency of the sensors make them preferable to be used in the industries. The aim of this study is to talk about the material properties estimation applications using eddy current testing and capacitive sensing. The basic operations of eddy current testing and capacitive sensing with example of application in the non destructive testing are discussed. Next, the recent advancements of eddy current testing and capacitive testing in imaging technique are presented in this paper.

Keywords: Material properties, Eddy current testing, Capacitor imaging, Non destructive testing

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