Electricity: measuring and testing – Magnetic – With means to create magnetic field to test material
Patent
1989-11-20
1992-07-14
Snow, Walter E.
Electricity: measuring and testing
Magnetic
With means to create magnetic field to test material
324238, G01N 2790, G01R 3312
Patent
active
051306522
ABSTRACT:
An AC magnetic flux leakage type flaw detecting apparatus for use in flat surface flaw detecting comprises AC exciting means having a pair of magnetic poles for exciting a steel material to be flaw detected, a leakage magnetic flux detecting element, and rotatably scanning means for rotatably scanning the magnetic flux leakage detecting element in a surface substantially parallel to the flat surface oppositely to the flat surface to be flaw detected of the steel material in a plane of an exciting magnetic field between the pair of magnetic poles.
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General Dynamics, "Classroom Training Handbook, Non-Destructive Testing eddy current testing", 1967, pp. 2-1-2-15, (Reference A).
Beisnner, Matzkanin and Teller, "NDE Applications of Magnetic Leakage Field Methods" Jan. 1980, pp. 1-15 (Referemce B).
Kawakami Masanobu
Kokubu Akio
Eddio Corporation
Snow Walter E.
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