南京师范大学学报：工程技术版2012，Vol.12Issue(1)：70-75,6.
基于ModBus协议的高精度光栅位移测量仪设计
ModBus Protocol Based Design of High-Precision Grating Displacement Measurement Instrument
摘要
Abstract
A ModBus protocol based high precision grating displacement measurement instrument was designed by using STC89C51 microcontroller in this paper.According to the principles of grating displacement transducer,a fractionized circuit for the grating signals was designed to achieve grating pulse interruption and motion direction identification for the singlechip with improved measurement precision,and then the measured results are presented with a LCD display.To enhance the compatibility with the AI series measurement meters,a 485 interface was also designed for data communication with computer based on the ModBus protocol.The experimental displacement measurement for kyropoulos sapphire growth using a LE Moire grating ruler proved that the precision was enhanced for 4 times with good ability of anti-interference and suggested the industrial application with long transmission distance,high data transfer rate and good reliability.关键词
莫尔光栅尺/单片机/ModBus协议/位移测量Key words
moire grating ruler/singlechip/ModBus protocol/displacement measurement分类
机械工程引用本文复制引用
杨玲,陈轩泽,马青玉..基于ModBus协议的高精度光栅位移测量仪设计[J].南京师范大学学报：工程技术版,2012,12(1):70-75,6.基金项目
国家自然科学基金 （）
江苏省科技厅自然科学基金 （）
教育部高等学校博士学科点专项科研基金 （）
