Method and apparatus for measuring fluid flow in small bore cond

Details Method and apparatus for measuring fluid flow in small bore cond Method and apparatus for measuring fluid flow in small bore cond

1976-01-08

1977-06-28

Queisser, Richard C.

Pumps

Condition responsive control of pump drive motor

Responsive to change in rate of pump fluid flow

73194A, 128 205F, F04B 4900, G01F 166

Patent

active

040322599

ABSTRACT:
Fluid flow in small bore conduits is measured and controlled utilizing a Doppler flowmeter to measure flow rate. The fluid is then passed through a static chamber in which sound speed in the fluid is measured by a velocimeter. The outputs of the flowmeter and the velocimeter are multiplied to correct the measured flow rate for errors due to its sound speed dependency. The corrected flow rate may be then used to control a pump to provide the desired flow rate.

REFERENCES:
patent: 2770795 (1956-11-01), Peterson
patent: 3408940 (1968-11-01), McGrogan
patent: 3787882 (1974-01-01), Fillmore et al.
patent: 3896788 (1975-07-01), Sato

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