G - Physics – 01 – N
Patent
G - Physics
01
N
340/124.3
G01N 27/82 (2006.01) G01N 17/00 (2006.01) G01R 33/12 (2006.01)
Patent
CA 1270919
METHOD FOR DETECTING CORROSION ON CONDUCTIVE CONTAINERS HAVING VARIATIONS IN JACKET THICKNESS ABSTRACT There is disclosed a method for detecting corrosion on the walls of conductive containers wherein a transmitting antenna induces a current into a portion of the container wall and the decay of the induced current is detected by a receiving antenna, with a record of the decay of the induced current being created. The record is interpreted to determine the thickness of the container wall portion and the presence or absence of corrosion is inferred. The effects of variations, in distance between the transmitting antenna and the receiving antenna and the pipe wall at one location on the pipe and between the transmitting antenna and the receiving antenna and the pipe wall at another location on the record of the decay are corrected for by examining the rate of decay of the induced current.
584308
Lara Pedro F.
Rontgen Technische Dienst B.v.
Smart & Biggar
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