Abstract |
The particle size analyzer described in this manual is composed of a particle counter and a pulse-height analyzer. It is portable and battery operated and is designed to measure particle size distributions in atmospheric aerosols and in other suspensions of solid particles or liquid droplets in gases. The instrument covers the range of particle sizes from 0.3 micron to 4 microns, diameter. A 15-channel galvanometer simultaneously indicates the total concentration of particles in the above range and also the concentrations in each of 12 size channels. The particle counter can be used alone to obtain indications of particle concentrations above a given size, this minimum size being adjustable from 0.3 micron to 2 microns. |