Vortex flow meter

Details Vortex flow meter Vortex flow meter

1989-03-09

1990-03-13

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 132

Patent

active

049074598

ABSTRACT:
A vortex flow meter comprises a first diaphragm which divides a first and a second pressure chamber from each other; a second diaphragm which divides a third and a fourth pressure chambers from each other; a first and a second bridge circuits which receive the action of the first and the second diaphragms, respectively; a first and a second variable amplifiers which amplify the outputs from the first and the second bridge circuits, respectively; and a differential amplifier which receives the outputs made by the first and the second variable amplifiers, inverse to each other in polarity and nearly equal to each other in magnitude.

REFERENCES:
patent: 3991613 (1976-11-01), Adler et al.
patent: 4161878 (1979-07-01), Fussell, Jr.

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