A PHOTOGRAPHIC TECHNIQUE FOR THE DETERMINATION OF SIZES OF LIQUID DROPLETS

摘要

Droplet size samples of certain aerosols are collected on micro-scope slides coated with a red-dyed plastic film. Droplets of low volatile liquid produce spots which remain wet and continually spread. However, there is an optimum time at which these drops can be measured to obtain the relationship of spot diameter to drop diameter. Where large numbers of samples are involved, measuring the spots within a prescribed period of time becomes a near impossibility.