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Smart actuators employed in micropositioning are known to exhibit strong hysteresis nonlinearities, which may be asymmetric and could adversely affect the positioning accuracy. In this paper, the analytical inverse of a generalized Prandtl-Ishlinskii model is formulated to compensate for hysteresis nonlinearities of smart actuators. The generalized model was modified to ensure its continuity, and...
Piezo micro-positioning actuators have been widely used in micro-positioning applications due to the fast expansion, high force generation, and unlimited resolution. However, these actuators exhibit some rate-dependent hysteresis effects which affect the accuracy of these micro-positioning systems and may even lead to system instability. In this paper, the rate-dependent Prandtl-Ishlinskii model is...
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