Apparatus for ultrasound detection

Details Apparatus for ultrasound detection Apparatus for ultrasound detection

1990-04-16

1991-08-27

Chapman, John E.

Measuring and testing

Vibration

By mechanical waves

12866007, 73620, G01N 2900

Patent

active

050423037

ABSTRACT:
An ultrasound transducer generates a received signal in response to a reflected ultrasound signal. Polarity and phase information of the reflected ultrasound signal can be obtained by time-selectively amplifying the received signal with a specific gain function. The specific gain function is derived from the received signal itself and is independent of the polarity of the received signal.

REFERENCES:
patent: 3486368 (1969-12-01), Brech
patent: 3934458 (1976-01-01), Beretsky et al.
patent: 4043181 (1977-08-01), Nigam
patent: 4226121 (1980-10-01), Knospler
patent: 4412544 (1983-11-01), Beretsky et al.
M. G. Silk, Ultrasonic Transducers for Nondestructive Testing, Adam Hilger Ltd., Bristol, 1984, pp. 74-75.

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