Title :
An analysis of eddy current testing with sheet current
Author :
Tsuchimoto, M. ; Fukaya, A. ; Honma, T.
Author_Institution :
Dept. of Electr. Eng., Hokkaido Univ., Sapporo, Japan
fDate :
11/1/1993 12:00:00 AM
Abstract :
The eddy current problem of recognizing a crack on the edge of a rivet hole is analyzed numerically by using the current vector potential method. The vertical field is induced by the disturbance of the sheet eddy current on a thin plate. The vertical field is evaluated for a visualization technique with magnetooptics. A vague image of a crack is improved by cancellation of signals of the rivet hole in the numerical analysis
Keywords :
crack detection; current distribution; eddy current testing; NDT; T-method; crack detection; current vector potential method; eddy current testing; magneto-optics eddy current images; rivet hole edge; sheet current; thin plate; vertical field; Eddy current testing; Eddy currents; Electrodes; Equations; Image recognition; Inspection; Magnetic fields; Numerical analysis; Optical polarization; Visualization;
Journal_Title :
Magnetics, IEEE Transactions on
