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压电/电致伸缩陶瓷作为一种理想的微位移器在许多领域得到了广泛应用,但是由于其存在迟滞、蠕变及非线性等不足,限制了它的进一步应用.本文在分析压电/电致伸缩陶瓷极化机理的基础上,给出了压电/电致伸缩陶瓷归一化的控制模型,同时给出几种情况下的典型例子及其电压同位移的关系曲线,通过分析得出了采用电极化强度的控制方法可以有效地减小压电/电致伸缩陶瓷的迟滞的结论
Piezoelectric / electrostrictive ceramics have been widely used in many fields as an ideal microdisplacer, but its further application is limited because of its lack of hysteresis, creep and nonlinearity. Based on the analysis of the polarization mechanism of piezoelectric / electrostrictive ceramics, this paper presents a normalized control model of piezoelectric / electrostrictive ceramics. At the same time, it gives some typical examples and their voltage co-displacements Through the analysis, it is concluded that the control method of electric polarization can effectively reduce the hysteresis of piezoelectric / electrostrictive ceramics