Pollakカウンターによるサブミクロン粒子計測法(第1報)

概要

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The solid or liquid particulate materials which vary in diameter from some 10^<-3>μm to several 100μm disperse in a general atmosphere and we call its system "aerosol". From the recent development of cleanroom etc., available techniques which can measure smaller size and lower concentration of aerosol are required. It is considered that the condensation method is a very excellent and convenient technique for measurement of submicron particles. The Pollak counter is considered pioneer of the Condensation Nuclei Counter and gives us many informations about condensation method. In this paper the characteristics and performance of Pollak counter, and its improvements to obtain a sufficient reliability and long-term steady operation are presented. Furthermore, preliminary experiment to investigate one property concerned with the Pollak counter is shown.
東海大学の論文