Ultrasonic system

Details Ultrasonic system Ultrasonic system

1983-01-25

1984-12-11

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

73625, G01N 2900

Patent

active

044870736

ABSTRACT:
An ultrasonic system for non-destructive testing in industry and for visualizing soft tissue structure in medical diagnosis using a coaxial transducer array formed of a plurality of annular transducer elements each having the same predetermined area. The area of each of the transducer elements and the radiating aperture of the array is chosen to provide a well-resolved narrow beam in accordance with the focal length along the axis of the array.

REFERENCES:
patent: 4012952 (1977-03-01), Dory
patent: 4155259 (1979-05-01), Engeler
patent: 4169385 (1979-10-01), Kellogg et al.
patent: 4242913 (1981-01-01), Mezrich et al.
patent: 4307613 (1981-12-01), Fox
"Transient Fields of Concave Annular Arrays", Ultrasonic Imaging 3, 37-61 (1981), Marcel Arditi, F. Stuart Foster, John W. Hunt.

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