Combined aerosol monitor and calibrateable light ray scattering

Optics: measuring and testing – By particle light scattering – With photocell detection

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356243, G01N 2153

Patent

active

043679501

ABSTRACT:
A calibrateable light ray scattering reference rod utilized in a light scattering dust monitor. This light ray rod scatters an amount of light equivalent to a given concentration of dust. Adjustability is provided so that several concentrations of dust can be represented. This adjustment is accomplished by moving a threaded opaque slug axially inside the translucent rod.

REFERENCES:
patent: 3992102 (1976-11-01), Kajii
patent: 4232967 (1980-11-01), Grackev et al.

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