基于DSP的光机扫描控制技术

针对传统模拟控制技术所设计的光机扫描控制系统，存在控制精度低、线性度差的问题，介绍一种基于DSP 的光机扫描控制系统。通过分析该系统的组成选择了合适的电机和位置传感器部件，并采用电流反馈和位置反馈相结合的数字控制策略，实现高精度、高线性的光机扫描控制。实验结果表明：扫描系统的精度满足使用要求，环境适应性好，能够适用于各种扫描成像类的光电产品。

Technique of Scanning Control Based on DSP

According to these problems of low control precision, linearity difference about the scanning control system of the traditional analog control technologydesign, introduces a kind of scanning control system based on DSP. optimal motor and position sensor have been selected through the analysis of validity of the system. Current feedback and position feedback digital control strategy has been applied to achieve a ray machine scanning and control system of high-precision and accurate linearity. Experimental results show that the scanning and control system proposed in this paper possesses high accuracy to satisfy the using requirements and is robust to different environmental conditions. Therefore, it is promising in applications in varies types of photoelectric scanning imaging products.