G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 27/90 (2006.01)
Patent
CA 2285500
The defect defection system of the present invention includes an encircling coil for providing a saturating DC magnetic fields to tubular goods. Also included is an encircling drive coil for applying a low level AC field using three- phase AC. Encircling pick up coils within the AC drive coils detect uniform, time varying magnetic fields to reveal defects within the tubular goods passing through the system.
Curtis William W. Jr.
Grubbs Roy C.
Ico P&o Inc.
Smart & Biggar
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