Measuring and testing – Vibration – By mechanical waves
Patent
1991-03-26
1992-12-01
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
73634, G01N 2924
Patent
active
051671573
ABSTRACT:
An apparatus and method for inspecting multilayer articles. An article to be inspected is clamped in a liquid filled tank between a pair of focused transducers. An ultrasonic pulse is introduced to a cross section of the article from each transducer sequentially. Reflections from the surfaces and interfaces within the article are received by each transducer and transmitted to a computer for analysis. The thicknesses of the innermost layers of the article are determined by calculating the mean of the measurements from each transducer for each inner layer.
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Cormack Robert
Horacek Stephen M.
Minet H. Kent
Wertz Ronald D.
Alberding Gilbert E.
Ball Corporation
Finley Rose M.
Williams Hezron E.
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