Liquid differential pressure measurement using a vertical manifo

Details Liquid differential pressure measurement using a vertical manifo Liquid differential pressure measurement using a vertical manifo

1984-01-26

1985-12-31

Swisher, S. Clement

Measuring and testing

Specific gravity or density of liquid or solid

Hydrostatic pressure type

73719, G01N 926

Patent

active

045613079

ABSTRACT:
Liquid differential pressure measurement apparatus using at each of two separate vertical locations a manifold with a pair of voids, each pair being covered with a thin, non-elastomer membrane pressing tightly against a horizontal fence line therebetween. A first void of each pair is gas pressurized from the external side of the manifold to move the membrane on the internal side of the manifold outwardly against the pressure head of liquid on the membrane at the location of the fence line, the gas escaping via the second void, which is vented. A meter connection to the first void of each pair is supplied to a differential pressure meter and/or a device that converts a differential pressure to an electrical signal for remote readout or the like.

REFERENCES:
patent: 1603162 (1926-10-01), Star
patent: 3161051 (1964-12-01), Perry
patent: 4128013 (1978-12-01), Perry
patent: 4136567 (1979-01-01), Rosenblum

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