Method and apparatus for obtaining information about the size distribution of macroscopic particles in a liquid

Abstract From the Canadian patent

On the basis of a series of reflection measurements on a liquid parameters , are calculated which describe a particle size distribution of particles in the liquid. In each reflection measurement a signal beam is generated in the , liquid and a value of a property such as the amplitude of a reflection on a particle in the signal beam is measured. Using maximum likelihood estimation the parameters of the particle size distribution are estimated on the basis , of an expression for a probability of the measured values as a function of the measured values. The expression used contains a first factor for the probability of a reflection measurement of which a reflection with the measured …