Average fluid flow sensor

Details Average fluid flow sensor Average fluid flow sensor

1981-02-13

1982-08-17

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Using differential pressure

G01F 146

Patent

active

043443303

ABSTRACT:
A sensor for providing a differential pressure signal indicative of the average relative rate of flow of a fluid through a duct. Two tubular members are provided, each of which are formed in a loop oriented transverse to the fluid flow and each having a plurality of spaced-apart orifices along their length. In one of the tubular members, the orifices face upstream toward the impinging fluid flow; in the other, the orifices face downstream. The difference between the pressures developed within the two tubular members as a result of the orientation of these orifices relative to fluid flow is indicative of the average rate of fluid flow in the duct.

REFERENCES:
patent: 1508017 (1924-09-01), Greve
patent: 1702274 (1929-02-01), Schmidt
patent: 2828076 (1958-03-01), Donahue
patent: 3129587 (1964-04-01), Hallanger
patent: 3355946 (1967-12-01), Lazell
patent: 3449954 (1969-06-01), Brown
patent: 3581565 (1971-06-01), Dieterich
patent: 3759098 (1973-09-01), Logsdon et al.
patent: 4290315 (1981-09-01), Groberg
Shortridge Instrument Inc. Brochure "Flowhood The Proven Standard of Accuracy".
Anemostat Products Division/Dynamics Corporation of America Catalog No. 76VF.

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