DocumentCode :
1017899
Title :
Eddy current imaging of surface-breaking structures
Author :
Joynson, R.E. ; McCary, R.O. ; Oliver, D.W. ; Silverstein-Hedengren, K.H. ; Thumhart, L.L.
Author_Institution :
General Electric Co., Schenectady, N.Y., USA
Volume :
22
Issue :
5
fYear :
1986
fDate :
9/1/1986 12:00:00 AM
Firstpage :
1260
Lastpage :
1262
Abstract :
Restoration of image shape or connectivity has been achieved by using eddy current data taken with a recording head style probe. Examples are included showing results on an EDM slot much smaller than the probe gap area and on incised letters comparable to the gap in size. Details of the preprocessing and the Wiener filter used are described. Other, less computationally intensive, image processing for finding slot size is also discussed.
Keywords :
Eddy currents; Image restoration; Materials testing; Surfaces; Digital images; Displays; Eddy currents; Image processing; Image restoration; Magnetic heads; Probes; Shape; Surface structures; Wiener filter;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.1986.1064476
Filename :
1064476
Link To Document :
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