Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1987-12-17
1989-06-27
Strecker, Gerard R.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
324 712, 324229, G01N 2782, G01R 3312, G01B 710
Patent
active
048433209
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. One method of interpretation uses reference records from container walls having known parameters for comparison. Another method of interpretation examines the times that the induced current reaches the container wall portion surface that is farthest from the antennas.
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Atlantic Richfield Company
Fails James C.
Mantooth Geoffrey A.
Strecker Gerard R.
Zobal Arthur F.
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