Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1992-04-03
1994-05-24
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
324232, 324262, 336200, G01N 2782, G01R 3312, H01F 2102
Patent
active
053152344
ABSTRACT:
An eddy current device for inspecting a component includes an eddy current array circuit having respective pluralities of drive and sense elements and having an active face for positioning on a surface of the component during the inspection operation. A backing is disposed on a face of the eddy current array circuit opposite to the active face for concentrating an electromagnetic flux from the eddy current array circuit into the component when each of the plurality of drive elements is being energized. A mechanical arrangement is provided for supporting and deploying the backing and the array circuit to substantially conform with the surface portion under inspection and to cause each of the pluralities of drive and sense elements to be maintained at their respective substantially constant distances from the inspection surface during scanning, preferably at a controlled rate of scan.
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Charles Richard J.
Hedengren Kristina H. V.
Hurley Donna C.
Kornrumpf William P.
Little Francis H.
Edmonds Warren S.
General Electric Company
Moore, Jr. Charles L.
Squillaro Jerome C.
Strecker Gerard R.
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