Method to determine circumference or radius of cylindrical body; involves using optical triangulation, non-contact measurement procedure and mathematical algorithm

摘要

The method involves scanning a linear (1) or surface section of a cylindrical body (4). The scanned measurements are used with a mathematical algorithm to determine the circumference, radius or diameter of the body. A device (2) for measuring the surface of the cylindrical body is based on use of an optical triangulation system. The procedure may be used with a rotating body, with the measurements synchronized to the speed of rotation so that the same section of the rotating body is measured.