Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1991-04-06
1993-01-26
Snow, Walter E.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
324233, 324242, G01N 2772, G01N 2782, G01R 3312
Patent
active
051825139
ABSTRACT:
The invention discloses an inspection system for detecting near surface flaws or defects in conductors using nondestructive eddy current testing suitable for industrial application. The system provides a method and apparatus for acquiring real time, synchronized, discrete eddy current measurement signals from a plurality of sufficiently disposed, spatially correlated eddy current probes then processing and formatting said measurement signals automatically over parallel data channels to accommodate digital processing techniques in order to produce on eddy current image. Utilizing digital image processing provides a capability for improving flaw detection limits while simultaneously enhancing image resolution.
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Hedengren Kristina H.
Hurley Donna C.
Young John D.
General Electric Company
McDaniel James R.
Snow Walter E.
Webb II Paul R.
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