Ultrasonic imaging system

Details Ultrasonic imaging system Ultrasonic imaging system

1978-05-24

1979-05-22

Kreitman, Stephen A.

Measuring and testing

Vibration

By mechanical waves

128660, 340 5MP, G01N 2900

Patent

active

041552598

ABSTRACT:
A B-scan ultrasound probe imaging system including an array of annular transducers is described in which dynamic focussing is provided by coherent demodulation of the echo signals generated in the transducers. As the range from which echoes are being received increases, coherent demodulation is maintained. The system provides improved lateral resolution over a greatly extended useful range.

REFERENCES:
patent: 3918024 (1975-11-01), Macovski
patent: 4005382 (1977-01-01), Beaver
patent: 4012952 (1977-03-01), Dory
patent: 4058003 (1977-11-01), Macovski
patent: 4079352 (1978-03-01), Burckhardt et al.

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