Optics: measuring and testing – With sample preparation – Condensation nuclei detector
Patent
1980-02-06
1981-10-06
Swisher, S. Clement
Optics: measuring and testing
With sample preparation
Condensation nuclei detector
7386311, G01N 100
Patent
active
042932173
ABSTRACT:
A portable device and a process for detection of persons and things by the Condensation Nuclei" technique. The disclosure sets out a new continuous flow device and process that collects an air sample, subjects it to supersaturation conditions when flowing for growing or condensation on air sample nuclei, and detects and counts the condensated or grown particles with a photo means and a conventional counter. An air sample is pumped through a heated tube humidifier where the sample becomes supersaturated for condensation. It is then carried by detector means for counting.
REFERENCES:
patent: 2956435 (1960-10-01), Rich
patent: 3462609 (1969-08-01), Beattie
patent: 3679369 (1972-07-01), Hashimoto
patent: 3738751 (1973-06-01), Rich
Bird, Jr. Alvin N.
Francis Norman L.
Thomas, Jr. Albert L.
Dence Richard B.
Edelberg Nathan
Gibson Robert P.
Swisher S. Clement
The United States of America as represented by the Secretary of
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