DocumentCode
952516
Title
Analysis of the velocity-induced eddy current in MFL type NDT
Author
Park, Gwan Soo ; Park, Sang Ho
Author_Institution
Dept. of Electr. Eng., Pusan Nat. Univ., Busan, South Korea
Volume
40
Issue
2
fYear
2004
fDate
3/1/2004 12:00:00 AM
Firstpage
663
Lastpage
666
Abstract
In magnetic flux leakage (MFL) type nondestructive testing (NDT), there could be velocity-induced eddy currents during the sensing, which might cause the distortion of the defect signals. In this paper, the distortions of the sensing signals are analyzed by using three-dimensional finite-element analysis with velocity-induced eddy currents, and then, the compensation scheme of the signal distortion is presented to obtain the pure defect signals. The presented method has been verified by experimental measurement.
Keywords
eddy current testing; finite element analysis; magnetic fields; magnetic flux; pipelines; MFL type NDT; compensation scheme; defect signals; finite-element analysis; magnetic flux leakage; nondestructive testing; pipe in gas; sensing signals; signal distortion; velocity-induced eddy current; Distortion measurement; Eddy currents; Finite element methods; Magnetic analysis; Magnetic flux leakage; Magnetic sensors; Nondestructive testing; Pipelines; Saturation magnetization; Signal analysis;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/TMAG.2004.824717
Filename
1284501
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