机动车回复反射器光度性能检验测量不确定度研究  

Study on Uncertainty of Measurement about Retro Reflector Device for Motor vehicles

作　　者：李钢[1] 吕雪萍 方素香[1] LI Gang;LV Xueping;FANG Suxiang(Tianjin University Internal Combustion Engine Research Institute(Tianjin,300072,China);Beiben Trucks Group Co.,Ltd.)

机构地区：[1]天津大学内燃机研究所,天津300072 [2]北奔重型汽车集团有限公司

出　　处：《小型内燃机与车辆技术》2021年第4期71-73,共3页Small Internal Combustion Engine and Vehicle Technique

摘　　要：机动车回复反射器最主要的技术指标是光度性能,由于被测信号较为微弱,因此有效减少各测量因素的影响,降低测量不确定度,对于提高测量准确度非常重要。对光度性能测量中的不确定度来源进行了分析,对测量不确定度进行了评定,指出了减小测量不确定度的方向。The most important indicator of the retro reflector device for motor vehicles is the photometric performance.Because the measured signal is relatively weak,it is very important for improving the measurement accuracy to reduce impact of various measurement factors and measurement uncertainty.In this paper,the source of uncertainty in photometric performance measurement is analyzed,the uncertainty of measurement is evaluated,and the direction of reducing uncertainty is given.

关 键 词：机动车回复反射器 光度性能检测 测量不确定度 

分 类 号：U469[机械工程—车辆工程]