Real-time particle counter for liquids with nebulizer and dryer

Details Real-time particle counter for liquids with nebulizer and dryer Real-time particle counter for liquids with nebulizer and dryer

1988-11-03

1990-01-16

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

356338, G01V 904

Patent

active

048945293

ABSTRACT:
A real-time particle counter apparatus for monitoring contaminant particles in liquids includes a nebulizer, a drying chamber and a counter. The nebulizer provides an aerosol of droplets containing particles to the drying chamber, and the droplets are evaporated leaving solid particles to be counted and sized by the counter. Liquid is recirculated in a closed loop by pumping means that moves the liquid between the liquid source and the nebulizer. A constant air flow containing particles is provided to the counter and the apparatus is self-regulating so that no operator is required to maintain the level of liquid in the nebulizer.

REFERENCES:
patent: 4110043 (1978-08-01), Eisert
patent: 4360270 (1982-11-01), Jeck
Hinds, William C., "Production of Test Aerosols", Chapter 20, pp. 379-382, Aerosol Technology, Properties, Behavior, and Measurement of Airborne Particles.

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