.Research on a novel orientation algorithm of single-ring absolute photoelectric shaft encoder[J].Optoelectronics Letters,2007,3(1):78-80 Research on a novel orientation algorithm of single-ring absolute photoelectric shaft encoder CHEN Yun Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, China Abstract:       A novel single-ring absolute optical shaft encoder is designed by studying the encoding principle of traditional absolute optical shaft encoder in this paper. The description of the orientation algorithm of the encoder is specified,and an example for explaining the orientation arithmetic is given,which indicates that the theory of the encoder works. The visual interface to acquire signals of CCD is shown with VB,which provides reliable foundation to process data. The effective factors of measurement precision of the encoder are analyzed. Hits: 3698 Download times: 228 View Full Text    Download reader