Low flow rate transducer construction

Details Low flow rate transducer construction Low flow rate transducer construction

1978-04-03

1979-11-06

Ciarlante, Anthony V.

Measuring and testing

Volume or rate of flow

Tank type

G01F 106

Patent

active

041731441

ABSTRACT:
A transducer construction for sensing very low fluid flow rates by providing an extremely lightweight paddle wheel rotatable within a close fitting fluid chamber having inlet and outlet ports directed toward the paddle wheel with a minimum angular separation between the axes of the ports to insure maximum circumferential contact of the fluid with the paddle wheel as it moves around the fluid chamber. Rotation of the paddle wheel is sensed by means of a light source and photosensitive device placed on opposite end walls of the fluid chamber to detect the passage of the paddles of the paddle wheel therebetween. A modular form of the paddle wheel and photo detector assembly is disclosed.

REFERENCES:
patent: 1958223 (1934-05-01), Yates
patent: 2078057 (1937-04-01), Chirca
patent: 2906121 (1959-09-01), Knauth
patent: 3465586 (1969-09-01), Johnston
patent: 3531988 (1970-10-01), Casani et al.
patent: 3937081 (1976-02-01), Dabanian et al.

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