Flow monitoring

Details Flow monitoring Flow monitoring

1978-01-26

1979-03-27

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

System

73215, 73302, G01F 134

Patent

active

041459261

ABSTRACT:
A method is provided for monitoring liquid flow in an open pipe or conduit wherein sensor means is located adjacent the invert or bed at the inside thereof and the depth of liquid is determined by the bubbler method. To minimize interferences with the liquid flow the bubble fluid is conducted from the exterior along the inside wall and to the vicinity of the flow bed in the pipe or conduit. The sensor means and the bubble fluid conductor are retainable in place by supporting means adapted to be expanded into secure frictional engagement with the inside wall of the pipe or conduit. The flow is determined by releasing the bubble fluid bubble-wise against the static pressure of the overlying liquid, sensing such pressure, indicating it in terms of liquid depth, and converting depth to flow by conventional methods.

REFERENCES:
patent: 3573019 (1971-03-01), Rees
patent: 3638490 (1972-02-01), Buettner
patent: 3727459 (1973-04-01), Buettner

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