Method and apparatus for determining aerosol size distributions

Details Method and apparatus for determining aerosol size distributions Method and apparatus for determining aerosol size distributions

1979-01-22

1980-07-08

Corbin, John K.

Optics: measuring and testing

For size of particles

By particle light scattering

250574, G01N 1502

Patent

active

042114870

ABSTRACT:
A method and apparatus for determining aerosol size distributions, in which he droplets of an aerosol region are placed in an amplitude modulated electric field, which produces resonant elongation and contraction of particularly sized droplets, in the form of mechanical oscillations, depending on the modulating frequency of the modulated electric field. A light beam is directed against the oscillating droplets and scattered thereby, with the intensity of the scattered light beam varying as a result of the changing reflection surfaces presented by the oscillating droplets. Differently sized drops are sequentially resonantly oscillated by selectively varying the modulation frequency of the electric field, with the varying intensity of the oscillating droplets at each modulation frequency yielding the size distribution of a given aerosol.

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