Measuring and testing – Vibration – By mechanical waves
Patent
1993-09-07
1996-03-12
Chilcot, Richard
Measuring and testing
Vibration
By mechanical waves
73621, 73598, G01N 2904
Patent
active
054976626
ABSTRACT:
A method and an apparatus for measuring and then controlling the refracted angle of ultrasonic waves propagating through a component. The method directly measures the actual refracted angle of ultrasound in an industrial component while performing nondestructive examination by measuring the slopes of characteristic echo-dynamic lines. These slopes are related to the angle of refraction by a simple mathematical relationship. A pattern recognition filtering method is used to identify the echo-dynamic pattern. The slope of an echo-dynamic line is computed after an edge detection algorithm is applied to the data.
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Chilcot Richard
General Electric Company
McCall Eric S.
McGinness James E.
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