摘要
提出了新型智能时栅传感器非线性误差的自动修正方案,采用了PHILIPS公司的ARM处理器LPC2148作为主控芯片,设计了定位控制电路和USB通信接口电路。系统按闭环控制方式工作,重点研究了步进电机的单向逼近和双向逼近位置控制算法,并开展了对比实验。实践证明:系统定位速度快,定位精度为±1角秒。
A self-correcting plan for nonlinear error of new intelligent sensor-time grating sensor was proposed. The PHILIPS LPC2138 ARM processor was used as a major controlling chip. Positioning control circuit and USB communication interface circuit were designed. The system worked by the way of closed loop control. Mainly studied the position controlling algorithm of one-way and two-way approaching of step motor, and carried out some comparison experiments. Practice has proved that： the system can position fast, and positioning precision is ＋1 arc-second.
出处
《微计算机信息》
2009年第20期101-103,共3页
Control & Automation
基金
基金申请人:刘小康
项目名称:全闭环时栅数控回转工作台动态误差控制策略研究
基金颁发部门:中国博士后基金会(20060400717)
基金申请人:刘小康
项目名称:新型全闭环数控分度类机床功能部件动态误差预测与修正方法研究
基金颁发部门:重庆市科委(2007BB3397)
关键词
时栅传感器
高精度定位
闭环
ARM
USB
Time grating sensor
High-precision positioning
closed loop
ARM
USB
