Measuring and testing – Vibration – By mechanical waves
Patent
1992-11-05
1994-01-25
Williams, Hezron E.
Measuring and testing
Vibration
By mechanical waves
73625, 73628, 73641, 310336, G01N 2910, G01N 2924
Patent
active
052807240
ABSTRACT:
A non-destructive, non-invasive arrangement is provided for detecting defects, such as voids, or poorly adhering layers in solid objects and laminated materials. A sensing signal is emitted by one transducer and received by two others. All of the sensors are disposed in a housing unit. The difference between the received signals is used to indicate a defect in the work piece proximate one of the transducers.
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Higo Yakichi
Kazama Shigenori
Finley Rose M.
Higo Yakichi
Nissan Motor Co,. Ltd.
Williams Hezron E.
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