Acoustic holographic array measurement device and related materi

Details Acoustic holographic array measurement device and related materi Acoustic holographic array measurement device and related materi

1990-09-17

1991-11-26

Pihulic, Daniel T.

Communications, electrical: acoustic wave systems and devices

Receiver circuitry

367 96, 367 87, 367 11, 367 8, 209524, B07C 500

Patent

active

050688359

ABSTRACT:
An acoustic device and related method for measuring the shape of an object. The device includes a plurality of transmitters for transmitting acoustic waves at an object to be measured and a plurality receivers for receiving the acoustic waves reflected by the object. A phase detector measures phase data of the reflected acoustic waves, the phase data being processed to calculate a value representing a shape of the object as a function of the phase data. This value is then compared with known reference value to accurately identify the shape of the object.

REFERENCES:
patent: 3955179 (1976-05-01), Planke
patent: 4070643 (1978-01-01), Green
patent: 4248334 (1981-02-01), Hanley et al.
patent: 4316533 (1982-02-01), Hughes et al.
patent: 4459487 (1984-07-01), Leser
patent: 4557386 (1985-12-01), Buckley et al.
patent: 4651879 (1987-03-01), Harris et al.
patent: 4870623 (1989-09-01), Buckley et al.

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