von klitzing constant

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.

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。