Resonant optoacoustic spectroscopy apparatus

Details Resonant optoacoustic spectroscopy apparatus Resonant optoacoustic spectroscopy apparatus

1978-11-20

1980-04-29

Corbin, John K.

Optics: measuring and testing

For light transmission or absorption

Of fluent material

73 24, 356440, G01J 342, G01N 2122

Patent

active

042003997

ABSTRACT:
Resonant optoacoustic cells are used in measurements of the concentration and composition of a gas or aerosol. Such apparatus is improved by providing a small absorption cell acoustically coupled to a resonant acoustic cavity so that the time delay associated with the flow of a gas or aerosol through the absorption cell is greatly reduced.

REFERENCES:
patent: 3820901 (1974-06-01), Kreuzer
patent: 3938365 (1976-02-01), Dewey
patent: 3948345 (1976-04-01), Rosencwaig
patent: 4028932 (1977-06-01), Rosencwaig

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