Pulsed Eddy Current Technology: Characterizing Material Loss with Gap and Lift-off Variations
- 1 September 2001
- journal article
- research article
- Published by Informa UK Limited in Research in Nondestructive Evaluation
- Vol. 13 (3), 119-129
- https://doi.org/10.1080/09349840109409692
Abstract
Ownership costs of operational aircraft have increased steadily over the years. One of the major cost drivers is structural deterioration due to corrosion. Beyond the economics, finding and characterizing corrosion is essential for the continued airworthiness of aircraft fleets. To this end, the pulsed eddy current technique holds the potential of becoming the primary means of detecting corrosion in multilayered structures. Its wide-band frequency spectrum allows the determination of a large number of parameters, such as defect size and location. Pulsed eddy current is still considered an experimental nondestructive technique because of realistic inspection problems (e.g., probe tilting, protrusion of rivets, and thickness variations in adhesive and paint) have not been addressed in the past. Recent advances change this situation and allow pulsed eddy current to be a credible field technique.Keywords
This publication has 1 reference indexed in Scilit:
- Pulsed eddy current: Finding corrosion independently of transducer lift-offAIP Conference Proceedings, 2000