文章基本信息

标题：Active Damping of Dynamical Structures Using Piezo Self Sensing
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作者：Bas Jansen ; Hans Butler ; Ruben Di Filippo 等
期刊名称：IFAC PapersOnLine
印刷版ISSN：2405-8963
出版年度：2019
卷号：52
期号：15
页码：543-548
DOI：10.1016/j.ifacol.2019.11.732
语种：English
出版社：Elsevier
摘要：AbstractPiezo actuators are widely used in high-precision equipment where accurate nanometer positioning is required. Piezo material, like PZT, show significant hysteretic behaviour, typically needing position feedback control or solutions like charge amplification to minimize hysteresis effects. Other materials like LiNbO3show linear behaviour themselves. Both, however, have an inherent high stiffness and lightly damped mechanical resonances leading to unwanted vibration. This paper investigates the use of self sensing in piezo’s, using current and voltage in the electrical domain, for active damping purposes. In particular, the combination with charge control is shown, and a hysteresis cancellation technique is proposed.
关键词：KeywordsPiezoLiNbO3PZTSelf-sensingActive damping