基于DSP+MCU光栅信号处理系统的实现

Study on Grating Signal Processing System Based on DSP+MCU

针对传统光栅莫尔条纹细分方法的不足,提出了一种基于微处理器的大小数结合细分法进行莫尔信号的细分,将信号进行区间划分来实现辨向。由此设计了以DSP为核心的"DSP+MCU"光栅信号处理系统,DSP负责信号的采集和处理,MCU完成系统的总体控制和简单的数据处理,DSP配合MCU完成光栅莫尔信号的采集、放大、滤波、细分、辨向、数据显示和通讯,为光栅副的直线位移和角位移的测量提供了一个通用平台。实验结果表明,光栅的细分精度为3″。

Aiming at the deficiency of grating Moiré fringes traditional subdivision methods,one way of subdivision combined with big and small number based on the microprocessor is put forward and used to Moiré fringes subdivision.Interval division of signals is carried out to judge direction.The "DSP+MCU" grating signal processing system with DSP as its core is designed,and DSP mostly takes charge of signal gathering and processing,while MCU mainly completes the system s overall control and the simple data processin...