井冈山大学学报（自然科学版）Issue(6)：51-55,5.DOI:10.3969/j.issn.1674-8085.2013.06.011
一种光幕测速系统的设计与实现
A DESIGN AND IMPLEMENTATION OF VELOCITY MEASURING SYSTEM BASED ON LIGHT SCREEN
摘要
Abstract
Based on the optoelectronic conversion principle, we implement a velocity measuring system based on light screen, which adopts LM339 as the main chip, re-design of the velocity measuring system based on hardware and software, solves the problem of the original system light screens’ coverage is not comprehensive and light uneven thickness. It also improves accuracy and precision of the whole system, completes the integration of the screen target and timing system. Based on the analysis and calculation of the light flux signal, the system implements the precisely measurement of different speed of moving object. After more than a year of practical testing, the system is stable and reliable, which all the indicators are to meet the design requirements.关键词
光电转换/LM339/光幕测速系统/光通量信号Key words
optoelectronic conversion/LM339/velocity measuring system based on light screen/light flux signal分类
军事科技引用本文复制引用
穆天红,杨云,冯聪..一种光幕测速系统的设计与实现[J].井冈山大学学报（自然科学版）,2013,(6):51-55,5.基金项目
陕西省教育厅专项科研计划项目 （）
