| With the development at full speed of science and technology, and the precision to the photoelectric angle encoder requires higher and higher, but the precision of the photoelectric angle encoder is decided by quality of More signal mainly.In the design of the photoelectric encoder, the quality of its signal had gone to the strong assurance, but both install partial and machinery go back pivot it rocks to be main factor to influence quality of More signal in the course of designing and mediating and using, and now it is analog addition to adopt usually to reduce these two kinds of factors to the influence on the angular accuracy. But analog addition phase place of signal poor to expect much to encoder two reading head of the same name end, and It is suitable for and measure less partial situation. After the partial quantity is increased , and the precision of encoder will drop greatly, difficult to up to his requires for use. So it is necessary to study a new data dealing method for More signal that is suitable for the heavy partial quantity of records yards and bad using environment. This text has introduced a kind of new incremental encoder More signal dealing method ----Oppositing-diameter digital addition. Use this kind of method, can relax the encoder and load the request which mediates the environment for use with to machinery and widened the job temperature range of the encoder , improve the stability and dependability of the encoder, and guarantee that it uses precision. |