摘要
In this paper an equipment for precise measurement of QHR in NIM is described.The essential parts in this equipment are a resistance comparator of one-to-one ratio with a comparison uncertainty of 3×10-8 and two specially designed resistor networks for determination of ratio between 12906.4035Ω of QHR at i=2 and 10kΩ or 1kΩ The transfering procedure from QHR to 10kΩ or 1kΩ can be completed easily with this equipment by a few one to one comparisons with a total uncertainty of
In this paper an equipment for precise measurement of QHR in NIM is described.The essential parts in this equipment are a resistance comparator of one-to-one ratio with a comparison uncertainty of 3×10-8 and two specially designed resistor networks for determination of ratio between 12906.4035Ω of QHR at i=2 and 10kΩ or 1kΩ The transfering procedure from QHR to 10kΩ or 1kΩ can be completed easily with this equipment by a few one to one comparisons with a total uncertainty of 5×10-8
出处
《计量学报》
CSCD
1991年第S1期6-11,共6页
Acta Metrologica Sinica
基金
The project is supported by Natural Science Foundation Committee of China
