Measuring and testing – Vibration – By mechanical waves
Patent
1991-10-07
1993-08-24
Noland, Tom
Measuring and testing
Vibration
By mechanical waves
73633, 73643, 73634, G01N 2910, G01N 2924
Patent
active
052378748
ABSTRACT:
This invention pertains to a method and apparatus of non-destructive testing wherein a generally bidirectional wave generating electromagnetic acoustic transducer is pivotally mounted upon a base with this transducer being continuously rotated or oscillated upon the base as it is moved with respect to the workpiece (or the workpiece is moved with respect to the base). This oscillation or rotation causes a wave to be generated along an arc with these waves extending radially outward from the base so that any flaws in the workpiece can be struck at an angle as close to 90 degrees as possible (the optimal incident angle).
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patent: 5051696 (1991-09-01), Schmale
Latimer Paul J.
Owens Gary W.
Perez Nelson
Sarantos Christos N.
Edwards Robert J.
Finley Rose M.
Hoelter Michael L.
Noland Tom
The Babcock & Wilcox Company
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