Fluid flow meter

Details Fluid flow meter Fluid flow meter

1990-04-26

1991-12-03

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Expansible chamber

7386121, G01F 154, G01F 300

Patent

active

050690671

ABSTRACT:
The fluid flow meter includes a flexible membrane formed of a flexible material and containing an apparatus for providing the membrane with resilience for undulation. The membrane is mounted in the fluid flow path such that the pair of faces simultaneously define with the housing fluid impermeable seals at least two different locations along the flow path. The membrane flexes so as to permit passage of discrete quanta of fluid, each having a known volume. The flow meter generates electrical signals corresponding to flexure of the membrane, and the electrical signals are monitored for determining a fluid flow rate.

REFERENCES:
patent: 398013 (1889-02-01), Welker
patent: 3175399 (1965-03-01), Medlar
patent: 3792204 (1974-02-01), Murayama et al.
patent: 3824855 (1974-07-01), Heckle
patent: 3888120 (1975-06-01), Burgess
patent: 3948098 (1976-04-01), Richardson et al.
patent: 4141246 (1979-02-01), Randolph
patent: 4358954 (1982-11-01), de Jong
patent: 4409830 (1983-10-01), de Jong
patent: 4578613 (1986-03-01), Posthuma de Boer
patent: 4594890 (1986-06-01), Baker
patent: 4920794 (1990-05-01), Ingman

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