Improvement of Self-sensing Piezoelectric Actuator Control Using Permittivity Change Detection
Improvement of Self-sensing Piezoelectric Actuator Control Using Permittivity Change Detection
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DOI：
10.1299/jamdsm.4.143
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发表时间：
2010
影响因子：
0.9
通讯作者：
Yusuke Ishikiriyama;T. Morita
中科院分区：
文献类型：
--
作者：
Yusuke Ishikiriyama;T. Morita
提出了一种利用压电陶瓷的介电常数变化与压电位移之间的线性关系来补偿压电陶瓷迟滞特性的自感知控制方法。本文介绍了该方法的改进。提高介电常数检测电压的频率，可以提高介电常数检测的灵敏度，提高位移传感的精度。此外，通过应用这种自感知方法，我们试图克服蠕变现象，这是一个独特的问题的压电执行器。
We present a self-sensing control method of piezoelectric actuators that compensate the hysteresis characteristics by using the linear relationship between the permittivity change and the piezoelectric displacement. In this article, improvement of this method is described. Increasing the frequency of the voltage for a permittivity detecting, the sensitivity of the permittivity detection was improved and the accuracy of the displacement sensing could be enhanced. In addition, by applying this self-sensing method, we tried to overcome the creep phenomenon that is a peculiar problem of piezoelectric actuators.