Vision correction algorithm for measuring viscosity of rubber by rolling steel ball
                                                                    WANG Xian lun, JIANG Peng peng
               (College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266042, China)

Abstract: Aiming at the problems of low measuring accuracy, long testing time and low efficiency of rubber viscosity measurement, the method of measuring the viscosity of rubber by vision was studied, a correction algorithm for measuring viscosity of rubber by rolling steel ball was proposed. The principle of measuring the viscosity of the rubber by the method of rolling ball was described and the visual correction model was set up. The correction algorithm was analyzed and implemented. The problem of determining the central location of ball under different conditions was solved by analyzing different positions of the rolling ball. At last the viscosity of the rubber was measured by a viscosity measuring platform to verify the feasibility of the correction algorithm. The results indicate that the experimental data obtained by this algorithm is little changed, which can meet the requirements of industrial production. The algorithm does not approximate the result and is not influenced by the distance from the ball to the projection plane, these serves to improve the applicability of the algorithm and the accuracy of the result.

Key words: viscosity of rubber; vision; correction model; correction algorithm