Measuring and testing – Vibration – By mechanical waves
Patent
1992-07-31
1995-04-18
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
73606, 73627, G01N 2906
Patent
active
054068495
ABSTRACT:
An apparatus and method for non-destructive examination of an interface within a body between two separate elements of the body wherein an acoustic microscope (124) has an ultrasonic transmitter (114) for directing ultrasonic waves at an angle to a body (1) and an interface (122) within the body between an outer part (3) and an inner part (2), an acoustic receiver (116) in spaced relationship to the transmitter (114) for receiving acoustic leaky waves from the interface (122), and a supporting device for supporting the transmitter and receiver for simultaneous scanning movement relative to the body at the same scanning speed. The body to be examined may be supported immersed in a liquid such as water (120) in a tank (121) so that the ultrasonic waves from the transmitter are directed at a predetermined angle depending on the materials of the separate elements and-pass through the liquid and the outer part before impinging on the interface in the body to be examined.
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Drescher-Krasicka Ewa
Simmons John A.
Finley Rose M.
The United States of America as represented by the Secretary of
Williams Hezron E.
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