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 language | English |
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| Title of host publication | 41st Annual Review of Progress in Quantitative Nondestructive Evaluation, Volume 34 |
| Editors | Dale E. Chimenti, Leonard J. Bond |
| Publisher | American Institute of Physics (AIP) |
| Pages | 345-352 |
| Number of pages | 8 |
| Volume | 1650 |
| ISBN (Electronic) | 9780735412927 |
| DOIs | |
| Publication status | Published - 1 Jan 2015 |
| Event | 41st Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2014 - Boise, United States Duration: 20 Jul 2014 → 25 Jul 2014 |
Conference
| Conference | 41st Annual Review of Progress in Quantitative Nondestructive Evaluation, QNDE 2014 |
|---|---|
| Country/Territory | United States |
| City | Boise |
| Period | 20/07/14 → 25/07/14 |