METHOD AND DEVICE FOR DETECTING AND DIFFERENTIATING BETWEEN CONTAMINATIONS AND ACCEPTS AS WELL AS BETWEEN DIFFERENT COLORS IN SOLID PARTICLES

摘要

The invention concerns a method and a device for detection of and differentiation between base materials, colors and contamination in granulate-like or tablet-shaped substances, characterized in that the substances are illuminated in a linear manner with a laser beam, the optical radiation re-emitted by the substances is spectroscopically analyzed, and the substances are classified and sorted into different groups.