摘要
压电陶瓷器件在精密定位和微位移控制中得到了广泛的应用,但是它也存在着迟滞、蠕变和非线性等不足。pre isach数学模型可用来描述压电陶瓷的迟滞特性,并根据电压变化的历史预测电压的对应位移量。根据压电陶瓷的特性及利用VB数据库技术实现pre isach数学模型的改进形式,使压电陶瓷的位移控制精度得到提高和改进。
Piezo-ceramic is now widely used in the fields of micro-positioning control and precisely position for it＇s advantages, however it still has disadvantages such as hysteresis,creep, non-linearity and etc, while classical and generalized Preisach Model can be used to model PZT＇s hysteresis character and further to forecast the voltage for a named displacement. In this article we discuss the realization of Preisach Model using the technique of VB database and made it improved in the controlling of PZT＇s displacement.
出处
《压电与声光》
CSCD
北大核心
2005年第4期449-451,共3页
Piezoelectrics & Acoustooptics
基金
重庆市应用基础基金资助项目(6979)
