Flow metering apparatus

Details Flow metering apparatus Flow metering apparatus

1978-05-30

1981-02-03

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 132

Patent

active

042480981

ABSTRACT:
A flow metering apparatus is disclosed which includes a dust in which a fluid to be measured flows, a pillar-shaped vortex generator inserted into the duct, and a force detector fixed firmly to the vortex generator substantially in an integrated manner, and capable of directly detecting an alternating force applied to the vortex generator due to Karman's vortex generated by the vortex generator, and converting the alternating force into an electric output signal.

REFERENCES:
patent: 1215135 (1917-02-01), Fisher
patent: 3116639 (1964-01-01), Bird
patent: 3696673 (1972-10-01), Ribner
patent: 3867839 (1975-02-01), Herzl
patent: 3878716 (1975-04-01), Asada
patent: 3888120 (1975-06-01), Burgess
patent: 4054808 (1977-10-01), Tanaka
patent: 4069708 (1978-01-01), Fussell, Jr.
patent: 4123940 (1978-11-01), Herzl et al.
patent: 4186599 (1980-02-01), Frick
Yamasaki et al., "Pulse Output Device Utilizing Karman Vorticies", 10/67, printed in SICE (Conference of Automatic Servomechanism, Japan).

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