Apparatus and method for measuring mass flow and density

Details Apparatus and method for measuring mass flow and density Apparatus and method for measuring mass flow and density

1988-03-01

1989-08-29

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

7386161, 7386172, 7386103, G01F 142

Patent

active

048605948

ABSTRACT:
The invention utilizes a segment of thin wall tubing which has an inlet, an outlet and a central region therebetween to measure flow. The central region is provided with two zones of different area. The meter is provided with a means to measure the elastic deformation of the tube in the two zones which results from the varying fluid flow and pressure. An output means is provided which evaluates the first and second zone deformation signals to generate a fluid mass flow output. Alternative embodiments include means to measure the elastic deformation of the tube to determine fluid density so that fluid mass flow may be determined when pressure and density are unknown.

REFERENCES:
patent: Re31450 (1983-11-01), Smith
patent: 2811855 (1957-11-01), Kotas
patent: 3049919 (1962-08-01), Roth
patent: 3167691 (1965-01-01), Halista
patent: 3584508 (1971-06-01), Shiba
patent: 4422338 (1983-12-01), Smith
patent: 4599906 (1986-07-01), Freud
patent: 4660421 (1987-04-01), Dahlin

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