Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1993-06-23
1995-08-29
Snow, Walter E.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
324242, G01R 3312, G01N 2790, G01N 2782
Patent
active
054463823
ABSTRACT:
Defects such as corrosion located on either the inner diameter or outer diameter of a covered metal component are detected through eddy current inspection. At least two concentric magnetizing yokes are held fixed with respect to each other and are scanned over the cover of the component. A magnetic flux sensor on the leg of each yoke detects changes in the magnetic flux that penetrates at different depth regions in the covered metal component, depending on the relative postion of each magnetizing yoke.
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Edwards Robert J.
Kalka Daniel S.
Snow Walter E.
The Babcock & Wilcox Company
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