Instrument determining alignment of rotors, especially printing rollers, includes sensor fixed to end face, with evaluation unit determining orientation relative to reference direction

摘要

A position measurement sensor (20) is fastened to an end face (12) of the cylinder, or a surface parallel to it. The sensor is aligned with a reference direction. Position measurements are taken at three different positions reached by turning the cylinder about its longitudinal axis. From the measurement data, an evaluation unit calculates the orientation of the cylinder with respect to the reference direction.