启用量子化霍尔电阻基准时国内直流电阻量值的修正

上帝

【英文篇名】 The Corrections of DC Resistance on the Start Day of Quantum Hall Resistance Standard
【作者】 邵海明; 贺青; 张钟华; 梁波;
【英文作者】 SHAO Hai-ming~（1; 2）; HE Qing~2; ZHANG Zhong-hua~2; LIANG Bo~2（1.Tianjin University; Tianjin 300072; China; 2.National Institute of Metrology; Beijing 100013; China）;
【作者单位】 天津大学; 中国计量科学研究院;
【关键词】 计量学; 直流电阻基准; 漂移率; 修正值; 量子化霍尔电阻;
【英文关键词】 Metrology; DC resistance standard; Drift; Correction; Quantum Hall resistance（QHR）;
【摘要】 报告了2003年以来采用量子化霍尔电阻(QHR)监测的原国家电阻基准的长期漂移率;通过直流电阻副基准分别与QHR和原主基准比对,确定了原主基准相对于QHR的偏差。2008年1月1日启用QHR新基准时,溯源到原基准的直流电阻及相关量值的修正量为-0.70μΩ/Ω,该修正量的不确定度为0.05μΩ/Ω,涉及到一等及其以上各级电阻计量标准。
【英文摘要】 To report the drifts of the former national DC resistance standards monitored by quantum Hall resistance(QHR) since 2003.By comparison among the primary,the secondary national standards of resistance and the QHR,the deviations of former national standard of resistance are determined.Also the correction of all DC resistance on January 1,2008,the start day of QHR standard is predicted-0.70 μΩ/Ω with the uncertainty of 0.05 μΩ/Ω.This involved all standard resistors of grade-1 and the above.