Research on the mixed Two-axes sun tracker

Solar energy is a kind of renewable eneurgy,and has extensive application prospect. The primary step for the application is to track the sun.This paper present a new two-axes auto- matic sun tracker.It combines the excellences of both program control and sensor track.The pro- gram control was adopted first,and then revising by sensor track.This is a low-cost and high ac- curacy system,and has broad prospects in scattered,small-scale solar energy field.The devices, configuration and basic principle will be introduced.