Patent ID: 6124588
Filing Date: 2000-09-26
Classification: G01D,H03M

Abstract:
A method for position determination of a rotating drive element with the aid of a measuring system comprising an absolute and an incremental measuring subsystem, whereinfollowing the beginning of measurements, the absolute position measurement value of the rotating driving element is determined,wherein the absolute position measurement values determined in this way are continuously transmitted in digital form to a subordinated evaluation unit until a reference marking at a known absolute reference position has been reached, wherein the absolute position measurement values are prepared for allowing a serial transmission,subsequently the actually determined absolute position measurement value is compared with the known absolute reference position and, in case of nonconformity, is at least partially corrected, and thereafterthe actually determined absolute position measurement values are continuously formed by calculating the data of the incremental measuring subsystem by the known absolute reference positions, and are transmitted as an output signal in digital form to the subordinated evaluation unit.