Flow sensing devices

Details Flow sensing devices Flow sensing devices

1981-07-16

1983-08-09

Birmiel, Howard A.

Measuring and testing

Volume or rate of flow

By measuring thrust or drag forces

G01F 128

Patent

active

043971954

ABSTRACT:
A flow sensing device comprises a shaft which is axially movable, and extends across a flow passageway, and carries an angled vane in the passageway. At each side of the passageway, the shaft is supported by a diaphragm which also prevents the leakage of fluid from the passageway beside the shaft. The two diaphragms are of equal area, so that any static pressure within the passageway does not result in a net pressure force tending to move the shaft axially. No other support is provided for the shaft.

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