基于光栅传感器位移测量系统设计  

Design of Displacement Measurement System based on the Raster Displacement Sensor

作　　者：梁应选[1,2] 王楠 张昌明[1,2] LIANG Ying-xuan;WANG Nan;ZHANG Chang-ming(School of Mechanical Engineering,Shaanxi University of Technology,Hanzhong Shaanxi 723001,China;Shaanxi Key Laboratory of Industrial Automation,Hanzhong Shaanxi 723001,China)

机构地区：[1]陕西理工大学机械工程学院,陕西汉中723001 [2]陕西省工业自动化重点实验室,陕西汉中723001

出　　处：《机械研究与应用》2022年第1期85-88,共4页Mechanical Research & Application

基　　金：2021陕西省科技厅项目:矩形双梁式双偏心动态扭矩传感器及其标定装置研制(编号:2021GY-323)。

摘　　要：针对高速、高精度数据采集的实际需求,开发了基于主、从单片机及PC上位机组成的线性位移测量系统。提出了从单片机完成数据采集、从单片机与主单片机采用并行数据传输、主单片机对采集数据显示及向上位机PC串口发送数据硬件实施方案。软件上把读数头输出的信号(脉冲电信号)采用软件细分、辨向、计数、信号处理等环节,最终转换成实际的线性位移值显示出来,并传至PC上位机进行存储、显示等软件编程思路。采用主、从式硬件结构,目的在于避免数据显示、处理等其它任务对采样速度的影响及采集数据的丢失现象,提高了系统数据采集的实时性。A linear displacement measurement system based on master and slave microcontroller and PC computer is developed for the actual requirements of high speed and high precision data acquisition.The hardware implementation scheme of data acquisition by slave microcontroller,data transmission by slave microcontroller and master microcontroller in parallel,data display by master microcontroller and data transmission by serial port of PC is put forward.The reading head output signal(pulse electrical signal)is finally converted into the actual linear displacement value to display by using the software subdivision,direction discrimination,counting,signal processing and other links,and then transmitted to the PC computer for storage,display and other software programming ideas.The master-slave hardware structure is adopted to avoid the influence of data display,processing and other tasks on the sampling speed and the loss of data acquisition,thus it improves the real-time performance of system data acquisition.

关 键 词：位移测量 光栅位移传感器 单片机 细分与辨向 

分 类 号：TH70[机械工程—仪器科学与技术] TP368.1[机械工程—精密仪器及机械]