E M El-Moghazy, F M EL-Sharkawy, Alaa-Eldin Abd-Elmageed
（Photometry Department, National Institute for Standard (NIS), Giza 12211, Egypt）
Abstract： In the present work, recalibration of the National Institute for Standards (NIS, Egypt) working standard lamps from Osram Inc. and their associated expanded uncertainty budget were done. A set-up composed of an integrating sphere, a standard photometer and a group of five luminous flux standard lamps ranged from 25 to 200 W calibrated and traceable to the National Physical Laboratory (NPL, UK) is used to measure and recalibrate the total luminous flux for these five working standard lamps. After recalibration, NIS (Egypt) maintains the national scales for luminous flux in lumen.
Key words： luminous flux; working standard lamps; standard photomer; integrating sphere
CLD number： TP930.12+4; TH741 Document code： A
Article ID： 1674-8042（2016）03-0291-06 doi： 10.3969/j.issn.1674-8042.2016.03.014
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工作标准灯组的再标定
E M El-Moghazy, F M EL-Sharkawy, Alaa-Eldin Abd-Elmageed
（Photometry Department, National Institute for Standard (NIS), Giza 12211, Egypt）
摘 要: 对埃及国家标准化研究所使用的由欧思朗公司生产的标准工作灯进行了再标定， 同时完成了相关的不确定性扩大的预算。 用一个积分球、 一个标准测光仪、 五个由英国国家物理实验室标定的25-200 W的光通量标准灯组成的试验装置对埃及国家标准化研究所的五个工作标准灯进行了测量和再标定， 使之保持国家级的测量水平。
关键词: 光通量； 工作标准灯； 标准测光仪； 积分球
引用格式： El-Moghazy E M, EL-Sharkawy F M, Abd-Elmageed A E. Recalibration of working standard lamps. Journal of Measurement Science and Instrumentation, 2016, 7(3)： 291-296. ［doi： 10.3969／j.issn.1674-8042.2016.03.014］
