DocumentCode
914347
Title
Invariance transformations for magnetic flux leakage signals
Author
Mandayam, S. ; Udpa, L. ; Udpa, S.S. ; Lord, W.
Author_Institution
Dept. of Electr. Eng. & Comput. Eng., Iowa State Univ., Ames, IA, USA
Volume
32
Issue
3
fYear
1996
fDate
5/1/1996 12:00:00 AM
Firstpage
1577
Lastpage
1580
Abstract
Magnetic flux leakage (MFL) methods are used extensively for inspecting ferromagnetic materials. The analysis of the MFL signal is however fraught with problems associated with the sensitivity of the signal to a number of factors such as the MFL sensor velocity and variations in the permeability of the test specimen. The interpretation can be simplified if the signals can be processed to attain invariance to these conditions. This paper presents novel methods for obtaining permeability invariant and velocity invariant MFL signals
Keywords
ferromagnetic materials; inspection; invariance; magnetic leakage; nondestructive testing; MFL sensor velocity; ferromagnetic materials; inspection; invariance transformations; magnetic flux leakage signals; permeability; Inspection; Magnetic analysis; Magnetic field measurement; Magnetic flux leakage; Magnetic materials; Magnetic sensors; Magnetization; Permeability; Pipelines; Shape; Signal analysis; Signal processing; Testing;
fLanguage
English
Journal_Title
Magnetics, IEEE Transactions on
Publisher
ieee
ISSN
0018-9464
Type
jour
DOI
10.1109/20.497553
Filename
497553
Link To Document