Coaxial flowpath apparatus

Details Coaxial flowpath apparatus Coaxial flowpath apparatus

1984-01-12

1985-03-26

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

By measuring vibrations or acoustic energy

G01F 1514

Patent

active

045065527

ABSTRACT:
An apparatus for the ultrasonic measurement of cryogenic or high viscosity fluid flow provides for precooling and symmetrical flow in the measuring run of one of two coaxial inner and outer cylinders. A baffle in one of the cylinders directs fluid flow so as to encircle the measuring path cylinder thereby cooling it and reducing heat loss and flashing against the walls. Symmetrical entry and exit of the fluid flow in and out of the measuring cylinder eliminates the effects of velocity gradients on the ultrasonic measuring signals. Inlet and outlet ports are located perpendicular to the coaxial cylinders allowing a longer measuring run without requiring a similar interruption to the pipe system being monitored.

REFERENCES:
patent: 4140012 (1979-02-01), Hendriks
patent: 4162111 (1979-07-01), Brown
patent: 4325262 (1982-04-01), Meisser et al.
patent: 4480486 (1984-11-01), Meisser et al.

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