Flow measurement device

Details Flow measurement device Flow measurement device

1987-05-01

1988-12-13

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

G01F 122

Patent

active

047901942

ABSTRACT:
Fluid flow is determined for a large flow pipe based upon differential pressure across an orifice in the pipe having a known cross-sectional area. In one form, the orifice is variable and adjusted in response to differential pressure so as to maintain differential pressure at a constant value. Flow is determined directly from orifice area. The orifice may be a part of a closed loop flow measurement system which responds to differential pressure changes to adjust orifice area. Various differential pressure settings may be used to accommodate selected back pressures in the flow pipe.

REFERENCES:
patent: 2402585 (1946-06-01), Allison
patent: 2606445 (1952-08-01), Eckman
patent: 3795145 (1974-03-01), Miller
patent: 3817099 (1974-06-01), Bubniah
patent: 4193301 (1980-03-01), Ferrentino
patent: 4325169 (1983-03-01), Torresin

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