Calibration of an optical particle counter by particle doppler shift spectrometry in the 4-8 μm range

Abstract

The particle Doppler shift spectrometer (PDSS) can be used to make an internally calibrated size measurement of aerosol particles. For low number concentrations of spherical particles, an accurate size distribution can be determined for particles from 3-30 μm diameter. In this work the PDSS is used to calibrate a commercial optical particle counter. Test aerosol samples with a very narrow size distribution are generated by a Berglund-Liu particle generator. The particle size as predicted by the particle generator parameters and the size measured by the optical particle counter are compared to the size determined by the PDSS. © 1980.