Electrical aerosol analyzer: history, principle, and data reduction

A review of the historical development of the Electrical Aerosol Analyzer is given. This is followed by a detailed description of the operating principle of the device, including the charger, the mobility analyzer, and the electrometer current sensor. The data reduction procedures are described, and in addition to the standard procedure used previously, a new procedure is described which can further reduce the data reduction errors for the instrument.