Eddy Current Testing – A Retrospective and Prospective Look

Rosell, A.; Michigan State University; USA

Rosell, A.; Michigan State University; USA
Udpa, L.; Michigan State University; USA
Udpa, S.; Michigan State University; USA

ID: ECNDT-0447-2018
Session: Eddy Current-Techniques 1
Room: H2
Date: 2018-06-14
Time: 10:50 - 11:10

Eddy current methods of nondestructive evaluation (NDE) have been employed ever since D.E. Hughes proposed an extraordinarily elaborate system in 1879 for sorting materials based on their differences in conductivity. Since then, eddy current methods have grown in sophistication both in terms of the hardware we employ as well as the tools we use for processing, analyzing and prognosticating. Several variants of the simple single frequency eddy current method have also emerged over the past several years. Modern day computational platforms together with new communication protocols, data analysis tools and sensor technologies have allowed us to advance instrumentation and measurement capabilities, improved our ability to simulate the underlying physical processes, helped predict the performance of test methods, and, most importantly, enhanced our ability to characterize the condition of materials. This presentation will walk us through the journey that the field has taken over the years, citing a few examples of work done by the author’s research group. A modest attempt to extrapolate that journey into the future will also be undertaken.