METHOD OF DETECTING COEFFICIENT OF IRREGULARITY OF MIXTURE OF GRANULAR MATERIALS Russian patent published in 2009 - IPC G01N1/28 

FIELD: physics.

SUBSTANCE: method involves determining number of samples, lowest permissible weight of a sample, taking samples from a mixture, finding concentration of the key component in the sample, calculation of the coefficient of irregularity of the mixture. When finding concentration of the key component, contents of the sample are first distributed in a uniform layer on a smooth surface, photographed and scanned. The image is processed using a computer and the image is presented in form of an array of numbers, each element of which is expressed by a pixel, value of which corresponds to the colour of the component. The range of pixel values is then selected and all pixels in that range are assigned the key component, and the other pixels - another component. Pixels corresponding to each component are counted and concentration of the key component, from which the coefficient of irregularity is calculated, is determined.

EFFECT: design of a fast method of determining coefficient of irregularity of a mixture of components which are difficult to separate.