Ultrasonic tomography unit

Details Ultrasonic tomography unit Ultrasonic tomography unit

1984-12-17

1986-05-20

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

045892849

ABSTRACT:
An ultrasonic head is a linear array consisting of a plurality of transducer elements. The array is perpendicular to a sectional plane of the object under study and can be rotated about its longitudinal axis. Several groups each consisting of jointly controlled transducer elements are driven to form a beam aperture. Between each two adjacent driven groups there is provided at least one group that is switched off. The ultrasonic tomography unit thus obtained scans several parallel section levels one after the other or even, at least approximately simultaneously, without additional mechanical movement.

REFERENCES:
patent: 4279157 (1981-07-01), Schomberg et al.
patent: 4398422 (1983-08-01), Haerten
patent: 4478083 (1984-10-01), Hassler et al.

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