Design and Control for a 2-DOF High-Precision Positioning Platform Using Electical-Magnetic Device

[[abstract]]This paper proposes a novel 2-DOFs positioner system with large travel ranges is presented. This research is a foundation studied to the electromagnetic driver in the past on the basis of the precise motion control laboratory, and Combine the design of the mechanism, that design a novel micro positioner is the main task of this research. We design a novel electromagnetic precise position system which is consisted of electrical-magnetic system (coil and permagnet) and motion pad. The movement of the motion pad is due to the repelling force between the coils and the magnets affixed to the pad. It's to change the position of the movement platform by adjusting the current of the electromagnetic coils. Therefore, the special mechanism designs while making the position system of this research motion, have double thrust. First, the plant and the dynamic model are derived and analyzed. Next, PID controller, adaptive fuzzy controller and adaptive sliding mode controller are established and linear guide produce friction is compensated by Tustin model. From simulation and experiment results, possible implementation, and satisfactory performances, and have been demonstrated. The concept of this system intends to achieve three goals: the first one is large traveling range within . The second is precision positioning within , and its size is as compact as . The subject organization of the platform adopts the aluminium alloy material, in order to lighten the weight of the localization platform, the guiding devices adopt the linear slide rail of Hiwin; X axle and Y axle separately use two electromagnetic actuator to reach the platform two-dimentional motion .