Flowmeter for liquids

Details Flowmeter for liquids Flowmeter for liquids

1978-05-23

1979-08-28

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

System

G01F 132

Patent

active

041656393

ABSTRACT:
A flowmeter for liquids is provided having a through passageway for the flow to be measured with a fluid interaction chamber and feedback means to provide an oscillation of the flow. The frequency of this oscillation is linearly and proportionally related to volume rate of flow and is independent of all fluid properties in the turbulent range, i.e., the frequency for a given volume flow rate will be the same for any liquid as long as the flow is turbulent. Provisions are made for detecting this oscillation and a sensor is provided which is responsive to changes in the heat transfer rates to the surrounding media. Vent means is provided communicating with the feedback means for venting gaseous material from the feedback passageways so that the flowmeter can be mounted and operate properly in a vertical pipe section.

REFERENCES:
patent: 3500849 (1970-03-01), McLeod, Jr.
patent: 3640133 (1972-02-01), Adams
patent: 3855859 (1974-12-01), Adams
patent: 4085615 (1978-04-01), Haefner

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