激光光斑大小对判定光斑存在的误差研究

摘要

在利用激光测速原理研制的车门闭合力测试仪中,通过对激光光斑在光电传感器成像的能量大小所引入的光斑有无判定时间误差研究,提出一种基于能量与时刻转换的光斑判定方法,在一定范围内做到光斑大小对判定的无关性.实践证明该方法对提高仪器测量精度有相当的作用.%In the use of laser speed principle developed door closing force tester,through the photo electric sensorimag?ing energy introduced by the size of the spot or decision time error research,the determination method is proposed based on the energy and time conversion spot.Practice has proved a considerable role in the method to improve measure mem precision