| 电压驱动与电流积分器相结合实现压电电荷控制 |
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| 引用本文： | 董维杰,崔玉国,杨志欣,孙宝元.电压驱动与电流积分器相结合实现压电电荷控制[J].计算机测量与控制,2002,10(4):260-262. |
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| 作者姓名： | 董维杰 崔玉国 杨志欣 孙宝元 |
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| 作者单位： | 大连理工大学,机械工程学院传感测控研究所,辽宁,大连,116023 |
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| 摘 要： | 用电荷控制可以补偿压电执行器的位移迟滞，文中在分析几种电荷控制方案不足的基础上，提出了集电压驱动和电流积分器为一体的驱动方法，积分器能获得压电电荷，却不影响驱电压，为补偿压电漏电，给积分器增加了漏电流补偿电阻，基于此驱动电路可实现电荷控制，文章用于开环位移监测和闭环PID控制的线性位移跟踪，证实了该电荷控制方法的有效性。
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| 关 键 词： | 电压驱动 电流积分器 压电电荷控制 压电陶瓷 迟滞 执行器 积分器 |
| 文章编号： | 1671-4598(2002)04-0260-03 |
| 修稿时间： | 2001年8月10日 |
Charge Control by Voltage Driving and Current Integration |
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| DONG Wei-jie,CUI Yu-guo,YANG Zhi-xin,SUN Bao-yuan.Charge Control by Voltage Driving and Current Integration[J].Computer Measurement & Control,2002,10(4):260-262. |
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| Authors: | DONG Wei-jie CUI Yu-guo YANG Zhi-xin SUN Bao-yuan |
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| Abstract: | Piezoelectric actuator controlled by charge shows less hysteresis than by voltage. Several implementationsof charge control are reviewed. Observing their drawbacks, a new charge control method is developed based on a com-pound circuit combining voltage driving with current integrator. A compensatory resistor is added to integrator to com-pensate current leakage of piezoceramic. The method has been used in measuring piezoelectric birnorph's free displacementand linear displacement in PID tracking control in closed loop. |
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| Keywords: | piezoceramic hysteresis charge control actuator integrator |
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