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Method and apparatus for detecting flaws in conductive material

United States Patent

July 7, 1998
View the Complete Patent at the US Patent & Trademark Office
Pacific Northwest National Laboratory - Visit the Technology Commercialization Program Website
The present invention uses a magnet in relative motion to a conductive material, and a coil that is stationary with respect to the magnet to measure perturbation or variation in the magnetic field in the presence of an inclusion. The magnet and coil sensor may be on the same side of the conductive material.
Hockey; Ronald L. (Richland, WA), Riechers; Douglas M. (Richland, WA)
Battelle Memorial Institute (Richland, WA)
08/ 691,052
August 1, 1996
This invention was made with Government support under Contract DE-AC06-76RLO 1830 awarded by the U.S. Department of Energy. The Government has certain rights in the invention.