Measuring and testing – Vibration – By mechanical waves
Patent
1977-02-07
1978-12-26
Kreitman, Stephen A.
Measuring and testing
Vibration
By mechanical waves
73625, 73629, G01N 2900
Patent
active
041310217
ABSTRACT:
An acoustic focusing device occupying a fixed aperture is used to both illuminate internal structure of a visually opaque object with a scanning focused beam of ultrasonic energy and for returning a reflected signal portion of the scanning focused beam passed therethrough for detection. The use of such a fixed-aperture focusing device permits deep soft tissue of a living human being to be displayed with high resolution for medical diagnostic purposes in a manner compatible with a real time frame rate.
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Koenig Edwin T.
Mezrich Reuben S.
Christoffersen H.
Cohen Samuel
Kreitman Stephen A.
RCA Corporation
Seligsohn George J.
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