Fluid flow measuring apparatus

Details Fluid flow measuring apparatus Fluid flow measuring apparatus

1981-09-25

1983-07-26

Ruehl, Charles A.

Measuring and testing

Volume or rate of flow

By measuring electrical or magnetic properties

73189, G01F 156

Patent

active

043948251

ABSTRACT:
A fluid movement measuring apparatus having ion collecting electrical conductors spaced from an ion generating source located within a housing. The housing has one or more circumferential rows of openings in communication with the space or fluid flow path between the ion generating source and ion collecting conductors. Ions migrating across the space are deflected by moving fluid in the direction of the fluid flow. Electrical currents caused by ions collected on the separate electrical conductors are directed to differential amplifiers. The differential amplifiers provide output voltages that are proportional to the differences in current collected by opposed electrical conductors. These output voltages provide information as to the movement, such as velocity and direction, of the fluid flowing in the fluid flow path.

REFERENCES:
patent: 1796547 (1931-03-01), Trout
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patent: 3470741 (1969-10-01), Durbin
patent: 3648517 (1972-03-01), Dorman
patent: 3831445 (1974-08-01), Durbin
"Development of a Corona Anemometer for Measurement of Stratospheric Turbulence", National Bureau of Standards, Air Force Geophysics Laboratory, Air Force Systems Command, USAF, Mar. 21, 1978.

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