用VB数据库实现压电陶瓷Preisach模型及定位控制  

Realization of Preisach Model and Positioning Control on PZT Using VB Database Technique

作　　者：曹荣[1] 李青[1] 刘颖[1] 秦岚[1] 

机构地区：[1]重庆大学光电工程学院,重庆400044

出　　处：《压电与声光》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)

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.

关 键 词：压电陶瓷 迟滞 preisach数学模型 数据库 

分 类 号：TP273[自动化与计算机技术—检测技术与自动化装置]