Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Viscosity
Patent
1980-10-14
1982-05-25
Ruehl, Charles A.
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Viscosity
73597, 7386102, 7386128, G01F 166, G01N 2902
Patent
active
043310257
ABSTRACT:
A method of measuring the flow rate of a fluid through a conduit by means of a sonic flow meter employing the steps of measuring the speed of sound transmission through the fluid from an upstream point in the conduit to an opposed downstream point, measuring the speed of sound transmission through the fluid from the downstream point to the upstream point, subtracting the two measurements to obtain a liquid flow rate indication, adding the two measurements to obtain the fluid sound velocity, measuring the temperature of the fluid in the conduit, determining a measurement of the fluid viscosity from the fluid speed of sound transmission and the temperature, and correcting the determined fluid velocity utilizing the detected fluid viscosity.
REFERENCES:
patent: 3290934 (1966-12-01), Brown et al.
patent: 3512394 (1970-05-01), Kleiss
patent: 4015470 (1977-04-01), Morrison
patent: 4080837 (1978-03-01), Alexander et al.
patent: 4300400 (1981-11-01), Bistrian, Jr. et al.
Lynch et al., "Flow Measurement with a New Ultrasonic Flowmeter"Flow, its Measurement and Control in Science and Industry, vol. 1, Part II, 1974.
Mapco, Inc.
Ruehl Charles A.
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