Condensation nuclei counter with automatic ranging

Details Condensation nuclei counter with automatic ranging Condensation nuclei counter with automatic ranging

1977-02-25

1978-12-05

Corbin, John K.

Optics: measuring and testing

With sample preparation

Condensation nuclei detector

356341, G01N 100

Patent

active

041283350

ABSTRACT:
A condensation nuclei counter for measurement of the concentrations of Aitken particles in gases by measurement of light scattered in a cloud chamber by water droplets formed on the particles in successive samples of a gas wherein the counter provides for sequential high speed sampling of the photodetector output during the cloud chamber growth of the droplets of each gas sample tested as a way of measuring the rate of increase of total droplet cross-section and wherein the counter provides for automatic ranging for particle population coordinated with the timed sampling during particle growth.

REFERENCES:
patent: 2956435 (1960-10-01), Rich
patent: 3010308 (1961-11-01), Skala
patent: 3011390 (1961-12-01), Van Luik, Jr.
patent: 3203309 (1965-08-01), Skala et al.
patent: 3664740 (1972-05-01), Rich

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