摘要
针对传统机动车测速仪精度不高的现状,设计了一种以激光二极管作为传感器的激光测速仪。该测速仪以AT89S52单片机为控制核心,可同时实现数据的实时采集、处理和显示;并详细叙述了测速原理、单片机系统和测速误差。实验结果表明,该激光测速仪测速的相对误差为0.1%,远优于传统测速仪精度。因此,该测速仪可以作为一种新型的交通管理工具,也可作为传统测速仪的现场测速校准装置,具有较好的推广应用价值。
Aiming at the problem of low precision of traditional velocimeters for motor-driven vehicles,the laser velocimeter using laser diode as sensor has been designed.The velocimeter is composed of the single chip computer AT89S52 as the control kernel,and features real-time data acquisition,data processing and display functions.The principle of velocity measurement,and the measurement error of the single chip computer are described.The result of experiment indicates that the laser velocimeter offers relative error of 0.1%,and higher accuracy than those of traditional velocimeters.Thus this instrument can be used as a novel tool for traffic management or the field calibration equipment for traditional velocimeters,it is also worth to be propagated for applications.
出处
《自动化仪表》
CAS
北大核心
2010年第5期62-64,共3页
Process Automation Instrumentation
基金
浙江省质量技术监督系统科研计划项目(编号:20060228)
关键词
激光
测速仪
高精度
单片机
校准装置
Laser Velocimeter High precision Single chip computer Calibration equipment
