教室照明UGR测量位置的研究

Research on the Measurement Position of UGR for Classroom Lighting

教室统一眩光值(UGR)测量位置与结果息息相关,有的标准要求在0.5 m测量,有的标准要求在1.1 m测量,还有的要求在后墙中心位置测量。本文探讨了这几个测量位置的出处,统计分析了大量教室距后墙0.5 m和1.1 m处的UGR实测数据,发现0.5 m处UGR值较大的教室占大多数,且1.1 m处有时候UGR值较低,同时,分析对比了镀铬格栅灯和非镀铬格栅灯的测试数据,发现不同防眩光设计对于教室UGR的分布影响很大。最后,基于上述发现,给出教室UGR测量位置的建议。

The location of the Unified Glare Rating(UCR)measurement in the classroom is closely related to the results.Some standards require measurement at O.5 m,some require measurement at 1.1 m,and others require measurement at the center of the back wall.This article explores the standard sources of these measurement positions.A large number of UGR measurement data of unified glare values at 0.5 m and 1.1 m away from the back wall of classrooms were statistically analyzed.The majority of classrooms have high UCR values at 0.5 m,and it is highly likely that the UGR value is the lowest at 1.1 m.Meanwhile,by analyzing the data of chrome and non-chrome grille lights,it was found that anti-glare design has a significant impact on the distribution of UGR in classrooms.Finally,based on the above findings,suggestions are given for the location of UGR measurement in the classroom.