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| Uncertainty Evaluation of Retroreflection Measurement Standard Equipment |
| ZHU Chuan-zheng1,2,LI Wei2,YANG Yong2,BAI Yuan-yuan2 |
1.School of Highway, Chang’an University, Xi’an, Shaanxi 710064, China
2.Research Institute of Highway, Ministry of Transport, Beijing 100088, China |
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Abstract A study on the measuring principle and process of retroreflection standard equipment was carried out, and two mathematical models, coefficient of luminous intenstiy and coefficient of retroreflection, were established. Then the two models influencing factors were analysed and main sources and distribution characteristics of the measurement uncertainty were founded. According to the theory of uncertainty, uncertainty components were evaluated separately. At last, combined measurement uncertainty was calculated and uncertainty report was proposed. The results show that the measurement uncertainty is 4.0% or 4.3% in different values range.
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［1］CIE54.2-2001,Retroreflection:Definition and measurement ［S］. 2001.
［2］韩文元. 逆反射测量系统的不确定度评定［J］. 公路交通科技, 2006, 8(13): 36-40.
［3］ASTM E810-03, Standard Test Method for Coefficient of Retroreflection of Retroreflective Sheeing Utilizing the Coplanar Geometry［S］. 2008.
［4］白媛媛, 朱传征. 逆反射光度性能测试技术分析［J］. 照明工程学报, 2011, 21(5): 7-10.
［5］国家质量技术监督局. JJF 1059-1999,测量不确定度评定与表示［S］.1999. |
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2012, Vol. 33 
