Ultrasonic measuring apparatus

Details Ultrasonic measuring apparatus Ultrasonic measuring apparatus

1986-08-01

1988-01-05

Birmiel, Howard A.

Measuring and testing

Vibration

By mechanical waves

73597, 73625, 128660, G01N 2900

Patent

active

047167653

ABSTRACT:
An ultrasonic measuring apparatus having an ultrasonic transducer array for transmitting ultrasonic beams and receiving echoes corresponding to the beams. The array is divided into a transmission section and a reception section. The transducer elements of the transmission section emit sequentially ultrasonic beams at a predetermined angle to a plurality of targets in a subject. The elements of the reception section receives echoes corresponding to the ultrasonic beams and coming at a predetermined angle, i.e., from the direction crossing the transmission ultrasonic beam and converts the echoes to echo signals. The echo signals are added or averaged, thereby obtaining the time which ultrasonic waves require to propagate through the subject. The sound velocity at which the ultrasonic waves travel in the subject is calculated from this propagation time.

REFERENCES:
patent: 3381266 (1968-04-01), Harris
patent: 4070905 (1978-01-01), Kosoff
patent: 4330872 (1982-05-01), Bratton
patent: 4417475 (1983-11-01), Okazaki
patent: 4566459 (1986-01-01), Umemura et al.
Encyclopedic Dictionary of Exploration Geophysics, Sheriff, 1974, p. 155.

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