Device for determining the mixing ratio of binary gases

Details Device for determining the mixing ratio of binary gases Device for determining the mixing ratio of binary gases

1975-07-14

1977-01-18

Queisser, Richard C.

Measuring and testing

Gas analysis

By vibration

137804, G01N 2902, F01C 104

Patent

active

040032426

ABSTRACT:
Device for determining the mixing ratio of binary gases in a mixture thereof by measuring the velocity of sound in the gas mixture, the value of the velocity of sound in the gas mixture determined by the oscillating frequency of a fluidic oscillator, the absolute temperature (T.sub.r) of the gas mixture in the feedback means of the oscillator, a correction factor proportional to the difference between the absolute temperature (T.sub.r) and the predetermined temperature (T.sub.o).

REFERENCES:
patent: 3299255 (1967-01-01), Bauer
patent: 3504691 (1970-04-01), Campagnuolo et al.
patent: 3554004 (1971-01-01), Rauch et al.
patent: 3616809 (1971-11-01), Laakaniemi et al.
patent: 3665947 (1972-05-01), Mayer
patent: 3915645 (1975-10-01), Funke et al.
Akmenkalns et al., IBM Technical Disclosure Bulletin, "Pneumatic to Electric Transducers," vol. 5, No. Dec. 1962, pp. 14-15.
Noble et al., Analytical Chemistry, "Performance and Characteristics of an Ultrasonic Gas Chrom. Effluent Detector," vol. 36, pp. 1421-1427, July 1964.

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