基于MSP430单片机计算法实现光栅细分  

Grating Subdivision Based on MSP430 Calculation Method

作　　者：张永枫[1] 杨中雨[2] 

机构地区：[1]深圳职业技术学院电子与信息学院,广东深圳518055 [2]长春理工大学光电信息学院,吉林长春130012

出　　处：《自动化技术与应用》2012年第2期58-61,共4页Techniques of Automation and Applications

摘　　要：为实现光栅电子细分的目的,采用了单片机计算法。该方法是MSP430F149单片机实时对光栅的正弦和余弦两路莫尔条纹信号进行采集和计算,根据计算结果确定出信号的相位即细分点,进而得知光栅的位移量。本文应用单片机计算法完成光栅的64细分,并成功应用于自动化控制及检测科研项目中,达到了令人满意的效果,单片机计算法细分具有推广应用价值。In order to realize the purpose of grating electronic subdivision,a microcomputer calculation method is used.This method acquisite and calculate real time sine and cosine of two grating moire fringe signal by MSP430F149 SCM.According to the calculation results,the subdivided signal phase is determined and grating displacemet is known.In this paper the 64 grating subdivison is completed by SCM,and it is applied to the automatic control and detection scientific research projects successfully.It achieve satisfactory results.SCM calculation method has popularization and practical value.

关 键 词：单片机 计算法 光栅 电子细分 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]