Electricity: measuring and testing – Magnetic – Plural tests
Patent
1975-02-28
1978-07-18
Corcoran, Robert J.
Electricity: measuring and testing
Magnetic
Plural tests
324238, G01R 3312
Patent
active
041018320
ABSTRACT:
A flaw detection device, and method of operation thereof, for inspecting an entire workpiece, such as a tube or pipe, for the presence of defects. The detection device includes a plurality of pickup arms mounted in spaced relation with respect to each other around a work path, and a plurality of sensing coils carried by each of the pickup arms. The pickup arms are each mounted on a support member to pivot on an axis transverse to the direction of the work path so that the sensing coils may be moved into proximity and around the circumference of a workpiece as the workpiece travels along the work path.
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Baker Richard G.
Fox Donald P.
Griesfelder Charles
Vild Joseph P.
Corcoran Robert J.
Republic Steel Corporation
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