摘要
提出了一种位移式传感器实验系统的改进方案,方案采用微型步进电机控制位移传感器的位移量,在步进电机控制上采用了细分控制策略,细分控制驱动电路采用全桥PWM微型步进电机驱动器3957,实现直线步进电机的平稳运行,系统采用通用单片机AT89C52为控制核心,A/D转换采用12位A/D转换器AD574,满足系统的测量精度要求,采用独立式按键和1602液晶显示器实现人机对话功能。改进后的方案能在实现实验目的的基础上大大提高实验效率和实验数据的可信度,从而节约有限的课内实验学时,扩大了实验容量,提高了实验质量。
An improvement project of displacement sensor experiment system was put forward.A micro-stepper motor was used to control the displacement.The subdivision control strategy was adopted to keep it running smoothly.The stepping motor driving system adopted 3957.AT89C52 SCM was used as centre controller,and AD574 was used as AD converter,LCD 1602 and freestanding button were used as man-machine interface The new system not only could achieve the original purpose,but also could improve experiment efficiency and the credibility of the experimental data.Thus the limited in-class experimental class hours were saved,Experimental capacity was expanded and its quality was improved.
出处
《实验室研究与探索》
CAS
北大核心
2014年第1期73-75,共3页
Research and Exploration In Laboratory
基金
淮安市新型自动化技术应用中心(HAP201107)
关键词
位移传感器
实验系统改进
步进电机控制系统
displacement sensor
experimental system improvement
stepper motor control system
