Vortex-shedding flowmeter with unitary shedder/sensor

Details Vortex-shedding flowmeter with unitary shedder/sensor Vortex-shedding flowmeter with unitary shedder/sensor

1980-09-30

1982-07-20

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 132

Patent

active

043399576

ABSTRACT:
A vortex-shedding flowmeter capable of accurately measuring the flow rate of a liquid or gas even under extreme operating conditions. The fluid to be metered is conducted through a flow pipe having a shedder/sensor unit torsionally supported therein on a pivot axis normal to the flow axis of the pipe, said unit being caused to oscillate about said axis at a rate proportional to the flow rate of the fluid. The torsional support included a torque tube whose base is received within a bore in the pipe and is welded thereto and whose tip is welded to one end of the shedder/sensor unit to provide a closed structure preventing leakage of fluid from the pipe. These oscillations are converted into corresponding electrical signals by an external torque transducer operatively coupled to the unit by a sensor link assembly including a rod which extends into the torque tube and is welded to the tip thereof.

REFERENCES:
patent: 1215135 (1917-02-01), Fisher
patent: 3116639 (1964-01-01), Bird
patent: 3796096 (1974-03-01), Sielaff
patent: 3927566 (1975-12-01), Zanker

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