Apparatus useful for rapidly determining the molecular weight of

Details Apparatus useful for rapidly determining the molecular weight of Apparatus useful for rapidly determining the molecular weight of

1984-03-13

1985-07-09

Kreitman, Stephen A.

Measuring and testing

Gas analysis

Gas chromatography

374 45, G01N 2500

Patent

active

045274177

ABSTRACT:
The molecular weight of a pressurized flowing gas is determined by means of a vortex tube. The temperatures of the inlet gas to the tube and of its outlet hot and cold gas fractions are sensed by e.m.f.-producing temperature sensing means; the resulting e.m.f.'s are fed to a divider circuit which amplifies them, forms differential e.m.f.'s and a ratio of the differential e.m.f.'s, and converts the ratio to the molecular weight of the gas.

REFERENCES:
patent: 3165146 (1965-01-01), Smith et al.
patent: 3173273 (1965-03-01), Fulton
patent: 4067203 (1978-01-01), Bohr

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