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

128 2V, 128660, 340 5MP, G01N 2900

Patent

active

041552580

ABSTRACT:
A real time ultrasound imaging system provided with a fixed focus and including coherent demodulation of echo signals followed by time delay and coherent summation of the demodulated signals is described. As the range from which echoes are being received increases, coherent demodulation is maintained. Demodulation and time delay accuracies are relatively easy to maintain over a large field of view and a long range. The system has high resolution and high sensitivity.

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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