Modeling of nano piezoelectric actuator based on block matching algorithm with optimal block size

In this paper, a new hysteresis modeling method based on an improved sub-pixel blocking matching algorithm with an optimal block size and the Preisach model is proposed to model the hysteresis behavior of a nano piezoelectric actuator (PA) on nano scale in a real time system. First, the Preisach model about the hysteresis behavior of a piezoelectric actuator is introduced. Then, a real time block matching algorithm is proposed and its block size is optimized with a standard object. Finally, experiments are conducted with respect to a nano-meter movement platform system, and the results show the feasibility and validity of the sub-pixel estimation based block matching algorithm and its application in modeling the hysteresis behavior of PA.