Ultrasonic Doppler flowmeter with correction for vibratory signa

Details Ultrasonic Doppler flowmeter with correction for vibratory signa Ultrasonic Doppler flowmeter with correction for vibratory signa

1979-10-10

1981-07-28

Goldberg, Gerald

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

343 8, G01F 166

Patent

active

042803659

ABSTRACT:
An ultrasonic Doppler flowmeter for measuring flowing fluid by reflection of sonic waves from particles in the fluid is provided with a discriminating circuit including a comparator amplifier connected to the received signal that produces a zero-flow output from the flowmeter when the signal received by the receiving means is produced by vibration of the reflecting particles in a zero-flow condition.

REFERENCES:
patent: 2770795 (1956-11-01), Peterson
patent: 2908888 (1959-10-01), Kirkland
patent: 3443433 (1969-05-01), Liston
patent: 3554030 (1971-01-01), Peronneau
patent: 3741014 (1973-06-01), Tamura
patent: 4048853 (1977-09-01), Smith
patent: 4183245 (1980-01-01), Connery et al.

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