Devices for detecting fluid flow

Details Devices for detecting fluid flow Devices for detecting fluid flow

1978-06-21

1980-04-08

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

System

G01F 132

Patent

active

041966210

ABSTRACT:
In a device for detecting fluid flow, an elongated body, such as a wire, is supported so that when a substantial portion of its length is exposed to a flowing fluid with the longitudinal axis of said portion arranged substantially transverse to the fluid flow, said portion can be caused to vibrate by vortex shedding; an electromechanical transducer is coupled to the body so as to produce an electrical signal in response to the vibration; and either the presence of the electrical signal is detected, for operation as a safety switch, or the frequency of the vibrations is detected, for measurement of fluid flow rate, fluid velocity etc.

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patent: 3878716 (1975-04-01), Asada
patent: 3946608 (1976-03-01), Herzl
patent: 4069708 (1978-01-01), Fussell
Yamasaki et al. "The Karmen Vortex Flowmeter", in J. Soc. Contr. Eng. (Japan), vol. 10 #3, pp. 173-188.

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