Method of determining the quantitative content of gaseous or vap

Details Method of determining the quantitative content of gaseous or vap Method of determining the quantitative content of gaseous or vap

1978-05-02

1980-02-05

Kreitman, Stephen A.

Measuring and testing

Gas analysis

Gas chromatography

G01N 700

Patent

active

041865901

ABSTRACT:
The method of the present invention provides for an acceleration of a gas mixture jet to supersonic velocity ensuring the emergence of a shock wave in the absence of impurity, the recording of the total head of said jet and determination of the impurity from a variation of the shock wave position and intensity.
The device for accomplishing said method comprises intercommunicated hollow bodies of a sensing element and of an ejector. Coaxially mounted in the walls of the sensing element body is a feed nozzle made in the form of a Laval nozzle and an inlet nozzle communicated with a vacuum meter. In the ejector walls there are coaxially arranged a mixing chamber communicated with a diffuser, and a working nozzle with a pressure regulator coupled thereto.

REFERENCES:
patent: 3592042 (1971-07-01), Martinez
patent: 3783676 (1974-01-01), Tanney
patent: 4073183 (1978-02-01), Byalko et al.

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