Journal
PHYSICA B-CONDENSED MATTER
Volume 343, Issue 1-4, Pages 112-116Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physb.2003.08.080
Keywords
hysteresis; compensator; dynamic models; magnetostrictive actuators
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The paper proposes a two-stage model able to describe the dynamic behavior of a commercial magnetostrictive actuator in the frequency range of interest for fast actuation purposes. The first stage is a static model of hysteresis, while the second one is a linear dynamic model. The model structure allows to define well-assessed identification procedures for both stages. In particular, the identification of the dynamic stage is realized by the compensation of the transducer's hysteresis, through the employment of a pseudo-compensator. Experimental validation of the model is also reported and further applications to other magnetostrictive actuators is addressed. (C) 2003 Elsevier B.V. All rights reserved.
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