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The drive power supply for micro-positioning platform is an integral part of the control system of micro-positioning platform. In order to achieve the purpose of accomplishing precise positioning, the micro-positioning platform not only needs nice positioning accuracy, but also has good controllability and stability. This makes a high requirement for drive power supply for micro-positioning platform...
The need for precise fast positioning technique draws attention on space inter-satellite optical communication. This paper presents a novel PZT actuated precise tilt positioning system (PTPS), which consists of the control module, the PZT driving module, the precise tilt positioning mechanism (PTPM), and the precise displacement measure module. It provides a fast and precise control in tilt movements...
Piezoelectric actuators are frequently used nowadays in a wide variety of positioning devices. However, a major deficiency of piezoelectric actuators is that their open-loop control accuracy is seriously limited by hysteresis and creep effects. This paper describes a method for simultaneous compensation of the hysteresis and creep of piezoelectric actuator based on an inverse control in open-loop...
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