Device for determining the flow velocity and flow direction of g

Details Device for determining the flow velocity and flow direction of g Device for determining the flow velocity and flow direction of g

1994-03-18

1995-05-09

Goldstein, Herbert

Measuring and testing

Fluid flow direction

With velocity determination

7320422, G01F 168, G01P 512

Patent

active

054129834

ABSTRACT:
The flow velocity of the medium is determined with the aid of a temperature-dependent resistor. The measurement probe is located in a partially open measurement chamber. The measurement chamber has an inlet port and an outlet port of different sizes. Only if the flow enters through the smaller inlet port and exits through the larger outlet port, is the actual flow velocity measured. When the flow enters through the outlet port, the measured value is less by about 30%. From this difference the direction of flow can be clearly determined.

REFERENCES:
patent: 2255771 (1941-09-01), Golay
patent: 2314877 (1943-03-01), Hall
patent: 2926299 (1960-02-01), Rogoff
patent: 3246515 (1966-04-01), Martino et al.
patent: 4537068 (1985-08-01), Wrobel et al.
Testoterm GmbH & Co., "Testovent 4000/4300/4100/4200", Flugelrad-Anemometer, May, 1986.
G. F. Pennell, M. D. Plucinski and R. Varmha, "Air-Flow Direction Sensor", IBM Technical Disclosure Bulletin, vol. 25, No. 3B, Aug., 1982.

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