10~200000 cd/m^2宽量程亮度量值复现  

Realizations of Luminance Units in Range of 10~200 000 cd/m^2

作　　者：吕亮[1] 姜晓梅[1] LU Liang;JIANG Xiao-mei(Optic Division,National Institute of Metrology,Beijing 100029,China)

机构地区：[1]中国计量科学研究院光学所,北京100029

出　　处：《光子学报》2020年第7期72-80,共9页Acta Photonica Sinica

基　　金：国家重点研发计划(Nos.2016YFF0200303,2018YFF0212402)。

摘　　要：为了应对高亮度量程计量溯源需求并提高国家亮度计量标准的复现能力,建立了可覆盖10~200 000 cd/m^2量程的新一代国家亮度工作基准装置.研制了双光束注入式可调高亮度均匀光源并在光源出口安装了精密孔径限制光阑,研究了基于积分球亮度源法复现亮度绝对值的方法,对光源的稳定性及空间输出特性、复现装置定位精度、标准照度计的线性及光谱失配误差等关键计量特性进行了实验及分析,最终将复现的亮度标准值保存至标准亮度计用于未来的量值传递工作.实验结果表明:基于亮度源法的亮度复现装置在10~200 000 cd/m^2量程量值复现相对扩展不确定度为0.7%(包含因子为2);其复现量值与基于灯板法的3~1 500 cd/m^2国家亮度工作基准的偏差小于0.2%;装置测量范围上限较原基准提高了2个量级,基本覆盖了常规亮度计的量程,可很好地满足当前更高亮度应用领域的计量校准需求.In order to satisfy the increasing calibration demand for high range luminance and improve the luminance calibration ability in China, a new generation of national luminance work standard was established which covers the range of 10~200 000 cd/m^2. A twin light source injection adjustable high luminance uniform source was developed,and a precision limiting aperture was installed at the export of the source. The realization of the unitsc based on integrating sphere source method was introduced,and the key system characteristics were analyzed by experimental data,including the stability and spatial output characteristics of source,the position accuracy of adjustment,the linearity and the spectral mismatch error of the standard photometer etc. Finally the realized scale was transferred to a standard luminance meter which would be used as a transfer-reference. The relative expanded uncertainty of the new cd/m^2 realization system is 0.7%(coverage factor is 2). Comparison between the proposed system and the current luminance work standard(3~1 500 cd/m^2)shows a deviation less than 0.2%. The upper range of the proposed realization system is increased by 2 orders of magnitude compared with the original standard,and coveres the ranges of normal luminance meters,which can well satisfy the calibration demand in the high level luminance application of industry.

关 键 词：测试计量仪器 亮度 高亮度 均匀光源 计量基准 量值复现 

分 类 号：TP211.6[自动化与计算机技术—检测技术与自动化装置] TH741[自动化与计算机技术—控制科学与工程]