Precession flow meter

Details Precession flow meter Precession flow meter

1985-06-24

1987-01-13

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Mass flow by imparting angular or transverse momentum to the...

G01F 180

Patent

active

046354859

ABSTRACT:
A flow meter measures the time rate of mass flow by measuring the torque or torsion associated with the nutation of the spinning fluid created by a forced oscillation of the spinning axis of the spinning fluid flowing through a conical shell wherein the spinning movement is imposed on the fluid entering through a port disposed at the diverging extremity of the conical shell by a plurality of spiral flow guides, which spinning movement becomes accelerated as the fluid approaches the converging extremity of the conical shell. An oscillating motion imposed on the converging extremity in a first direction perpendicular to the spinning axis coinciding with the central axis of the conical shell produces a precession torque or torsion creating an oscillating motion in a second direction perpendicular to the first direction as well as to the spinning axis, wherein the time rate of mass flow is measured by measuring the oscillating motion in the second direction.

REFERENCES:
patent: 2934951 (1960-05-01), Li
patent: 3218851 (1965-11-01), Sipin
patent: 3329019 (1967-07-01), Sipin

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