METHOD AND DEVICE OF CONTROLLING TIRES OR CORRESPONDING SEMI-FINISHED PRODUCTS IN PRODUCTION LINE Russian patent published in 2018 - IPC G01M17/02 

FIELD: physics.

SUBSTANCE: group of inventions containing a method of controlling the tires or semi-finished products in the production line for tires, a process for the production of tires, a device for monitoring the tires or semi-finished products in the production line for tires, and a production line for tires. The method and the corresponding device of controlling the tires or semi-finished products in the production line for tires contain the stages, at which the surfaces of the tire or semi-finished product are illuminated, a detection of the optical intensity of the illuminating light reflected by the surface is produced on the set of N, where N is in the range of 1 to 3, pairs of the polarization states belonging to the group of the three pairs of the polarization states located on the opposite ends of the three respective diameters of the Poincare sphere, orthogonal to each other. M numbers are counted, where M is in the range of 1 to 3 values, representing an equivalent number of components of the Stokes vector belonging to the subset of the three components of the Stokes vector, containing the second component, Q, equal to the difference of the two optical intensities of the illuminating light reflected by the surface for the first pair of the polarization states, the third component, U, equal to the difference of the two optical intensities of the illuminating light reflected by the surface to the second pair of the polarization states, and the fourth component, V, equal to the difference of the two optical intensities of the illuminating light reflected by the surface to the third pair of the polarization states. Next, an appropriate control signal is generated, representing each Stokes component, and an appropriate control signal is analyzed to detect the possible presence of defects on the surface.

EFFECT: automation of the defect recognition.

31 cl, 13 dwg