Title :
A finite element study of the remote field eddy current phenomenon
Author :
Lord, W. ; Sun, Y.S. ; Udpa, S.S. ; Nath, S.
Author_Institution :
Dept. of Electr. Eng., Colorado State Univ., Fort Collins, CO, USA
fDate :
1/1/1988 12:00:00 AM
Abstract :
The difference in operation of conventional and remote field eddy-current nondestructive evaluation procedures is described. A finite-element study conducted to provide physical understanding of the remote-field eddy-current phenomenon is reported. Finite-element predictions of probe performance are shown to agree very well with experimentally observations. They also indicate the presence of an unusual potential valley and corresponding phase knot in the pipeline wall that play a significant role in explaining the underlying physics of the method
Keywords :
eddy current testing; finite element analysis; eddy-current nondestructive evaluation; experimentally observations; finite-element study; phase knot; pipeline wall; potential valley; probe performance; remote field eddy current phenomenon; Coils; Conducting materials; Corrosion; Eddy currents; Finite element methods; Frequency; Impedance; Inspection; Pipelines; Probes; Skin effect;
Journal_Title :
Magnetics, IEEE Transactions on
