UTILIZATION OF DIFFERENT COMPONENTS OF SC ATTERED-LIGHT FOR PARTICLE-SIZE DETERMINATION IN DISPERSED SYSTEMS

Light scattered by finely and coarsely dispersed particles can be used in variety of ways for characterization of sprays, emulsions, or susp ensions. The characteristic of greatest interest is the particle size or the particle size distribution. While homogeneous, coarsely dispers ed particles at sufficient dilutions and randomly distributed in a tra nsparent continuous phase are generally amenable to particle size anal ysis, finely dispersed particles at higher concentrations or coarsely dispersed particles containing finely dispersed components are often d ifficult to measure.This article discusses ways of over-coming such di fficulties on the basis of examples taken mainly from phase Doppler an emometry.