啟用量子化霍爾電阻基準(zhǔn)時國內(nèi)直流電阻量值的修正

【英文篇名】 The Corrections of DC Resistance on the Start Day of Quantum Hall Resistance Standard
【作者】 邵海明; 賀青; 張鐘華; 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）;
【作者單位】 天津大學(xué); 中國計量科學(xué)研究院;
【關(guān)鍵詞】 計量學(xué); 直流電阻基準(zhǔn); 漂移率; 修正值; 量子化霍爾電阻;
【英文關(guān)鍵詞】 Metrology; DC resistance standard; Drift; Correction; Quantum Hall resistance（QHR）;
【摘要】 報告了2003年以來采用量子化霍爾電阻(QHR)監(jiān)測的原國家電阻基準(zhǔn)的長期漂移率;通過直流電阻副基準(zhǔn)分別與QHR和原主基準(zhǔn)比對,確定了原主基準(zhǔn)相對于QHR的偏差。2008年1月1日啟用QHR新基準(zhǔn)時,溯源到原基準(zhǔn)的直流電阻及相關(guān)量值的修正量為-0.70μΩ/Ω,該修正量的不確定度為0.05μΩ/Ω,涉及到一等及其以上各級電阻計量標(biāo)準(zhǔn)。
【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.