NIM用计算电容测定的量子化霍尔电阻的SI值  

A Determination of the SI Value of QHR by the Cross-capacitor in NIM

作　　者：张钟华[1] 王晓超[1] 王登安[1] 李先捷[1] 贺青[1] 阮永顺[1] 

机构地区：[1]中国计量科学研究院

出　　处：《计量学报》1995年第1期1-5,共5页Acta Metrologica Sinica

摘　　要：量子化霍尔电阻的ＳＩ值的准确测定对进一步改进冯·克里青常数的准确度及国际基本物理常数平差均有重要意义。中国计量科学研究院于１９９４年春用计算电容测定了量子化霍尔电阻的ＳＩ值，测得ｉ＝１时的量子化霍尔电阻的ＳＩ值为ＲＨ＝２５８１２．８０８４（３４）Ω，其不确定度为１．３×１０－７（１σ）。The determination of the SI value of the Quantized Hall Resistance (QHR) is very important for further improvement of the accuracy of von Klitzing constant and the international adjustment of fundamental physical constants.The determination of the SI value of QHR by the cross-capacitor was completed in NIM in the spring of 1994. The SI value of QHR (i=1) was found to be RH = 25812. 8084(34)Ω with an uncertainty of 0.13ppm (1σ).

关 键 词：量子化霍尔电阻 计算电容 SI值 霍尔电阻 

分 类 号：TM934.101[电气工程—电力电子与电力传动]