Position: Home > Articles > Study on Grating Signal Processing System Based on DSP+MCU
Journal of Shihezi University(Natural Science)
2007,25
(5)
121-123
基于DSP+MCU光栅信号处理系统的实现
作 者：
鲁双全;朱传新
单 位：
重庆大学光电技术及系统教育部重点实验室
关键词：
莫尔条纹;DSP;MCU;细分;辨向
摘 要：
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″。
译 名：
Study on Grating Signal Processing System Based on DSP+MCU
作 者：
LU Shuang-quan,ZHU Chuan-xin(Key Laboratory of Opto-electronic Technology and Systems of the Education Ministry of China,Chongqing University,Chongqing 400030,China)
关键词：
Moiré fringes;DSP;MUC;subdivision;direction judgment
摘 要：
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 processing.DSP and MCU complete the collection,amplification,filtering,subdivision,sensing,data displaying and communication of grating Moiré fringes signal,and provide a universal platform for the grating-coupled linear displacement and angular displacement measurement.The experimental results show that the grating's subdivision precision is 3 ″.
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