雨天路面反射特性的测试系统  

Measurement System for Reflection Property of Wet Road Surface

作　　者：王刚 李文宜 刘木清 沈海平 WANG Gang;LI Wenyi;LIU Muqing;SHEN Haiping(Institute for Electric Light Sources,Fudan University,Engineering Research Center of Advanced Lighting Technology, Ministry of Education,Shanghai 200433,China)

机构地区：[1]复旦大学电光源研究所,先进照明技术教育部工程研究中心,上海200433

出　　处：《照明工程学报》2018年第2期24-27,94,共5页China Illuminating Engineering Journal

摘　　要：介绍了在实验室内模拟降雨并进行雨天路面反射特性测试的系统及方法。该测试系统采用成像式的亮度测量方法,相比一般描点式的亮度测量方法,对于路面亮度测量具有更高准确度。亮度计可以实现0°~180°观察角度(C角度)扫描,卤钨灯光源可以实现0°~90°入射角度(γ角度)扫描。整个测量过程由计算机自动控制,从而使得亮度计和光源的角度扫描与数据获取和处理同步。按照目前国内路面材料现状,采集了20块不同材料、新旧的路面样品作为测量样本,设置三种不同潮湿程度对其反射特性进行了测试。由于测试过程中路面湿度会产生变化从而影响其反射特性,因此采用了多块路面样本进行循环错位测试然后拼接数据的方法,从而在保证测量准确度的同时优化了测量效率。This paper introduces a measurement system and method for reflection properties of wet road surfaces,by rain simulation in the laboratory.The measurement system uses imaging luminance measurement method,which is more accurate for road luminance measurement than the spot luminance measurement method.The luminance meter can be rotated from 0 to 180 degree,which makes the observation angle(C)range.The tungsten halogen lamp can be rotated from 0 to 90 degree,which makes the incident angle(γ)range of the light source.All the measurement is controlled by the computer,so that the rotation of the luminance meter and light source,is synchronized with the data acquisition and processing.According to the common materials of road surfaces in China,20 samples of different materials,old and new are collected.Three wet statuses are prepared for measurement.Since the reflection property of a road surface will change due to its change of moisture as time goes by,we make a singleγangle scanning for several road samples one by one,and then put the data together to obtain the whole data table.This method optimizes the measurement efficiency,meanwhile guarantees the measurement accuracy.

关 键 词：道路照明 湿路面 路面反射 简化亮度系数 成像亮度计 

分 类 号：TM923[电气工程—电力电子与电力传动]