METHOD OF ANALYSING AGGREGATION CAPACITY OF COLLOIDAL SYSTEM PARTICLES Russian patent published in 2010 - IPC G01N15/02 G01N21/45 G01N21/82 G01N33/48 C02F1/52 

FIELD: physics.

SUBSTANCE: analysed sample is illuminated with coherent radiation and a field of vision is selected in the beam of radiation passing through the analysed sample using an aperture diaphragm which enables to view a fragment of the speckle image of mutual interference of coherent waves with random phase shift and random set of intensities as a result of scattering of light on particles of the analysed sample. The size of the field of vision is such that 1-4 speckles fall in it. Coefficient of variation of intensity of illumination of the field of vision with time is then determined, from the change of which aggregation capacity of particles and behaviour of aggregation is determined.

EFFECT: higher rate, accuracy and sensitivity of analysing aggregation capacity.

3 cl, 5 dwg, 1 tbl, 5 ex