Enhanced adjustment methods for optical rotary encoders

The subjects of this paper are optical rotary encoders and methods for a minimizing of measured errors of the controlled process of rotary encoders. In addition, the paper describes measuring methods and equipment for the automated accuracy control of optical rotary encoders and a method for compensation of measured errors. The paper presents a novel special coupling device for control encoders. The design of the novel coupling device provides an unrestrained connection between controlled and reference encoders. The elaborated experimental setup increases the calibration accuracy of rotary encoders considerably.