Electrical aerosol analyzer: An alternate method for use at high altitude or reduced pressure

Abstract

To use the Electrical Aerosol Analyzer (EAA) for determining submicron aerosol size distributions at reduced pressure, Yeh et al. (1981) developed a method by modifying the standard data reduction table. Based on the same assumptions i.e., the particle charging is independent of pressure when the charging parameter, Nt, is held constant, an alternative method was developed. A test indicated that these two methods are comparable and the agreement between the two is very good. The advantage of the present method is that all existing EAA data analysis packages or computer programs can be directly applied without any modification.