Mass-volume vortex flowmeter

Details Mass-volume vortex flowmeter Mass-volume vortex flowmeter

1990-01-19

1991-10-29

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

With indirect temperature or density compensation

7386124, G01F 132, G01F 1510

Patent

active

050605224

ABSTRACT:
A vortex shedding flowmeter includes at least one total pressure hole emerging through the leading edge of the vortex generator of an elongated cylindrical shape disposed perpendicular to the direction of the fluid flow and at least one static pressure hole emerging through at least one of the two side faces of the vortex generator, wherein the dynamic pressure of the fluid flow is determined from the difference between the total pressure and the static pressure, and the velocity of the fluid is determined from the shedding frequency of vortices shed from the vortex generator; whereby the mass flow rate can be determined from the ratio of the dynamic pressure to the velocity of the fluid and the density of the fluid is determined from the ratio of the mass flow rate to the velocity of the fluid.

REFERENCES:
patent: 4010645 (1977-03-01), Herzl
patent: 4448081 (1984-05-01), Kolitsch et al.
patent: 4523477 (1985-06-01), Miller

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