Developments in near electrical resonance signal enhancement (NERSE) eddy-current methods

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

3 Citations (Scopus)

Abstract

In industry, the detection of small defects above a background noise threshold is always a limiting factor. This is true for even the most sensitivity and reliable of NDT techniques. However, defect signals in eddy-current (EC) inspections have the potential to be boosted above noise thresholds by exploiting the near electrical resonance signal enhancement (NERSE) phenomena, resulting from resonant frequency-shifting of an EC system as the coil passes over a defect. Following on from the observation and characterisation of this phenomenon, NERSE based EC methods are being investigated and developed for the detection of sub-millimeter surface defects in Aerospace superalloys. This paper discusses current advances in the development of such techniques and explores the potential of NERSE exploitation as well as examining its limitations.

Original languageEnglish
Title of host publication41st Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 34
EditorsDale E. Chimenti, Leonard J. Bond
PublisherAmerican Institute of Physics (AIP)
Pages345-352
Number of pages8
Volume1650
ISBN (Electronic)9780735412927
DOIs
Publication statusPublished - 1 Jan 2015
Event41st Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2014 - Boise, United States
Duration: 20 Jul 201425 Jul 2014

Conference

Conference41st Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2014
CountryUnited States
CityBoise
Period20/07/1425/07/14

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    Hughes, R., & Dixon, S. (2015). Developments in near electrical resonance signal enhancement (NERSE) eddy-current methods. In D. E. Chimenti, & L. J. Bond (Eds.), 41st Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 34 (Vol. 1650, pp. 345-352). American Institute of Physics (AIP). https://doi.org/10.1063/1.4914629