Sealed capacitor transducer for fluid flow measurement

Details Sealed capacitor transducer for fluid flow measurement Sealed capacitor transducer for fluid flow measurement

1976-01-19

1976-11-16

Queisser, Richard C.

Measuring and testing

Volume or rate of flow

Weir type

73304C, G01F 120, G01F 2326

Patent

active

039916146

ABSTRACT:
A transducer for measuring gravital fluid flow includes a composite weir member having a downstream Palmer-Bowlus flume section and an upstream uniform channel section. A flexible sealed envelope partially filled with dielectric fluid is disposed in the bottom of the uniform channel, and is in open flow communication with a sealed vertical column secured to the channel wall. A pair of capacitive probe electrodes are disposed within the column and the envelope. Fluid pressure of the liquid flowing in the weir forces the dielectric fluid up into the column, thereby altering the capacitive coupling of the electrodes in a manner which is a direct function of the amount of fluid flow in the weir.

REFERENCES:
patent: 3153342 (1964-10-01), Pierce et al.
patent: 3212077 (1965-10-01), Edwards
patent: 3269180 (1966-08-01), Schreiber
patent: 3729994 (1973-05-01), Klug

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