Velocity and mass air flow sensor

Details Velocity and mass air flow sensor Velocity and mass air flow sensor

1981-10-26

1983-09-20

Goldstein, Herbert

Measuring and testing

Volume or rate of flow

With indirect temperature or density compensation

7386122, G01F 134, G01F 132, G01F 176

Patent

active

044048580

ABSTRACT:
A device for measuring the velocity of fluid includes a vortex generating means, a pressure sensor means and a processing means. The vortex generating means is positioned in the fluid stream so that vortices are formed in the wake of the generating means. The pressure sensor means is positioned in the wake of the generating means for sensing pressure variation caused by the passage of the vortices. The processing means is coupled to the pressure sensor for determining the fluid flow rate as a function of pressure changes sensed by the pressure sensor means.

REFERENCES:
patent: 3173003 (1965-03-01), Muller-Girard
patent: 3650152 (1972-03-01), White
patent: 3719073 (1973-03-01), Mahon
patent: 3729995 (1973-05-01), Kovacs et al.
patent: 4285246 (1981-08-01), Kita
patent: 4297894 (1981-11-01), Nagaishi

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