Parallelism detecting method of dynamic shear rheometer device based on picture processing

The invention discloses a parallelism detecting method of a dynamic shear rheometer device based on the picture processing. The parallelism detecting method comprises the steps that coloring on surfaces of an upper steel disc and a lower steel disc is conducted, marking is conducted on the circumference outside the upper steel disc, the upper steel disc and the lower steel disc are rotated, and an interval picture of each marking place; binarization processing and pixel-scale calculating are conducted on the pictures to get partial intervals; comparing is conducted on a plurality of partial intervals, ranges of distances are acquired, the parallelism of the upper steel disc and the lower steel disc is judged and the like. The parallelism detecting method of the dynamic shear rheometer device based on the picture processing has the advantages that non-contact and non-abrasion are achieved, and high-precision detecting with zero cost is realized.