B7.2 - Characterization of Dynamic Hysteresis Behavior of Ferroelectric Actuators

F. Wolf, A. Sutor, S. J. Rupitsch & R. Lerch
Ferroelectric sensors and actuators are widespread in research and industrial applications due to their ability to convert mechanical into electrical energy and vice-versa. The functional parts of such applications are often based on piezoceramic materials like lead zirconate titanate (PZT). The advantages of these materials are accompanied by a strong hysteretic large-signal behavior, directly related to the high driving levels required for actuators. In addition to that, this behavior reveals to be strongly creep-influenced and...