Flow rate sensor

Details Flow rate sensor Flow rate sensor

1989-05-15

1991-10-22

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

Thermal type

G01F 168

Patent

active

050584260

ABSTRACT:
A flow rate sensor is provided. This sensor includes a flow rate detecting element. The flow rate detecting element is provided within a flow passage so as to expose the flow rate of a medium whether at the center of the passageway or at the inner surfaces of the passage wall. The flow rate detecting element has a plurality of openings for allowing the medium to pass therethrough without pressure loss. Thus, the flow rate sensor may precisely detect the flow rate of a medium flowing within the passage regardless of insecurity in the flow distribution of the medium.

REFERENCES:
patent: 2776565 (1957-01-01), Hudson
patent: 4299124 (1981-11-01), Knapp et al.
patent: 4304129 (1981-12-01), Kawai et al.
patent: 4397179 (1983-08-01), Romann
patent: 4502239 (1985-03-01), Horn
patent: 4633578 (1987-01-01), Aine et al.
patent: 4685331 (1987-08-01), Renken et al.
patent: 4691566 (1987-09-01), Aine
patent: 4776214 (1988-10-01), Moran et al.

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