A new ECT surface probe without lift-off noise and with phase information on flaw depth
Abstract
The authors have devised a new surface eddy current probe that generates no lift-off noise in principle and provides phase information on surface flaw depth. The flaw signal phase hardly changes by the length and width of flaws, although the signal amplitude changes a great deal. The authors expect that the new probe makes eddy current testing more quantitative in flaw depth evaluation than the conventional probes.
- Publication:
-
Review of Progress in Quantitative Nondestructive Evaluation: Volume 20
- Pub Date:
- April 2001
- DOI:
- 10.1063/1.1373861
- Bibcode:
- 2001AIPC..557..969H
- Keywords:
-
- 81.70.Ex;
- 07.07.Df;
- Nondestructive testing: electromagnetic testing eddy-current testing;
- Sensors;
- remote sensing