Gas density detecting apparatus

Details Gas density detecting apparatus Gas density detecting apparatus

1974-04-11

1976-09-21

Goldstein, Herbert

Measuring and testing

Gas analysis

Density or specific gravity

G01N 930

Patent

active

039811786

ABSTRACT:
There is disclosed an apparatus and process for detecting changes in the density of a gas wherein the gas to be measured is introduced into a closed casing at the rotary axis of a hollow disc wheel rotating within the casing. The disc wheel is provided with a plurality of radial vanes and the gas is centrifuged by the rotating disc. A Pitot tube positioned at the periphery of the disc measures the force exerted by the centrifuged gas to ascertain its mass which is then compared with a reference pressure.

REFERENCES:
patent: 1133556 (1915-03-01), Gerdien

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