| 压电陶瓷微位移系统的变参数PID闭环控制方法 |
| PID Control for Piezoelectric Ceramic Micro-displacement System |
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| 中文摘要: |
| 针对压电陶瓷器件在精密定位控制中存在的迟滞、蠕变和位移非线性等不足,本文采用压电陶瓷直接粘贴应变片组成测量电桥作为位置反馈环节,设计了带上下限位的变参数PID闭环控制微位移系统,达到了预期的控制精度和效果. |
| 英文摘要: |
| Piezoelectric actuators are used widely in the field of precise positioning.But their hysteresis,creep and nonlinear characteristics make them difficult to be controlled.This article introduces the measurement principle of micro-displacement of piezoelectric ceramic based on strain gages signal used as feedback signal,and furthermore variable parameters PID control which has a upper limit and lower limit is introduced to make the precision and stability improved. |
| 左勇 张月平 蒋芝兰 李慧贤 |
| 中国航空工业第一集团公司北京长城计量测试技术研究所 北京100095 |
| 中文关键词: 压电陶瓷微位移器 精密定位 PID |
| 英文关键词:piezoelectric actuators,precise positioning,PID |
| 基金项目: |
| DOI： |
| 引用本文：左勇,张月平,蒋芝兰,李慧贤.压电陶瓷微位移系统的变参数PID闭环控制方法[J].计测技术,2006,26(2):36~38. |
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