基于GB 19152-2016的中欧机动车前照灯配光性能检验测量不确定度研究

Study on Uncertainty of Measurement about Vehicle Headlamp Lighting Test between China and Europe based on GB 19152-2016

测量不确定度是评估一个检验项目检验结果分散情况的重要指标。对于机动车前照灯配光性能检验项目,在国内的指导文件要求和欧洲的相应导则要求中都有比较全面的规定,但因国内机动车前照灯配光性能新版标准GB19152-2016有了较大变化,因此其测量不确定度的评价内容也发生了变化。以国内的指导文件为基础,结合GB19152-2016,对中欧的不同要求进行了比较,并给出了减小测量不确定度的方向。

Uncertainty of measurement is an important index to evaluate the dispersion condition of test result.To vehicle headlamp lighting test,there are rather complete requirements in Chinese guidance and European guide.But the evaluation of uncertainty has changed because of the changing of vehicle headlamp lighting standard GB19152-2016.This article mainly compares the requirements between China and Europe based on the Chinese guidance and combined with GB19152-2016,and put forward the directions to reduce the uncertainty of measurement.