摘要
目前对高速运动物体常用的测速方法基本上都要用到传感器,由于传感器的本身动作延迟大多在微秒量级,在物体高速运动情况下所测速度的误差必然比较大,因此传统的测速方法达不到应用要求;笔者设计了一种基于FPGA的高速物体测速系统,避免使用传感器,使系统的总体误差减小到0.00828%左右;该速度测量系统设计,以QuartusⅡ为软件平台,采用模块化设计并通过数码管驱动电路动态显示最终结果;该测速系统具有精度高、外围电路少、集成度高、可靠性强等特点。
Abstract： A＇t present, the velocity measuring method of high--speed object commonly used sensors. Since the delay of sensors is the range of microsecond, traditional velocity measuring method with big error does not reach application requirements when the measured object moves rapidly. This paper introduces a velocity measuring design of high--speed object based on FPGA, whiqh avoids to use sensors and makes the overall error decrease to about 0. 00828%. The design of velocity measurement system, based on Quartus ]I as software plat- form, uses modular design to display the final results dynamically through the digital drive circuit. Advantages of the system are high accura- cy, less peripheral circuit, high integration and high reliability etc.
出处
《计算机测量与控制》
CSCD
北大核心
2012年第7期1766-1768,共3页
Computer Measurement &Control
关键词
速度测量
碰撞
FPGA
精度分析
velocity measurement
collision
FPGA
accuracy analysis
