Vortex flowmeter with inertially balanced vortex sensor

Details Vortex flowmeter with inertially balanced vortex sensor Vortex flowmeter with inertially balanced vortex sensor

1989-09-26

1991-01-22

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 132

Patent

active

049861344

ABSTRACT:
A vortex shedding flowmeter comprises a vortex generating bluff body disposed across a first cross section of a flow passage and an inertially balanced vortex sensing planar member disposed across a second cross section of the flow passage parallel to the vortex generating bluff body on a plane parallel to the central axis of the flow passage in a pivotable arrangement about a pivot axis generally coinciding with the central axis of the flow passage, wherein one extremity of the vortex sensing planar member is connected to a transducer converting an alternating torque about the pivoting axis generated by vortices shed from the vortex generating bluff body and experienced by the vortex sensing planar member to an alternating electromotive force providing information on the flow rate of the fluid moving through the flow passage.

REFERENCES:
patent: 1935445 (1933-11-01), Heinz
patent: 4069708 (1978-01-01), Fussell Jr.
patent: 4727756 (1988-03-01), Lew

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