Electro-acoustic flowmeter

Details Electro-acoustic flowmeter Electro-acoustic flowmeter

1980-12-15

1983-07-05

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 166

Patent

active

043911501

ABSTRACT:
An apparatus for measuring the velocity of a contained fluid by the time required for pulses of sound energy to travel upstream and downstream, includes two simultaneously pulsed transducers mounted on the outside of the conduit wall or introduced into the stream of fluid. An electrical circuit is provided for eliminating interference by sound vibrations excited by the transducers in the wall of the conduit and which have equal travel times.

REFERENCES:
patent: 3314289 (1967-04-01), Rodely
patent: 3473378 (1969-10-01), Yoshiyama et al.
patent: 3537309 (1970-11-01), Geohegan, Jr. et al.
patent: 3575049 (1971-04-01), Boland
patent: 3641817 (1972-02-01), Dory
patent: 3987674 (1976-10-01), Baumoel
patent: 4015470 (1971-04-01), Morrison
Lynnworth-"Clamp-On Ultrasonic Flowmeters . . . Limitations and Remedies", Instrument Technology, vol. 22, No. 9, pp. 37-44, Sep. 1975.

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