摘要
报告了自1990年以来通过与量子化霍尔电阻比对考核的国家直流电阻(实物)基准的长期漂移率及偏差。结果表明2001年以来,国家直流电阻(实物)副基准的漂移率为-0.0551μΩ/a,主基准的漂移率为-0.0808μΩ/a;2006年10月25日,国家直流电阻(实物)基准复现的电阻量值较量子化霍尔电阻的相对偏差为+0.677μΩ/Ω,预计2007年1月1日需要修正-0.69μΩ/Ω。
The drifts and deviations of National DC (artifact) Resistance Standards by comparison with Quantum Hall Resis- tance(QHR) since 1990 is reported. The results indicate that the Secondary (artifact) Resistance Standards has been drifting in - 0.0551 μΩ/a since 2001, and the Primary (artifact) Resistance Standards in - 0.0808μΩ/a. Moreover, the resistance based on the Primary (artifact) Resistance Standards deviated + 0.677 μΩ/Ω of that on QHR on October 25, 2006, and - 0.69μΩ/Ω is expected to correct on January 1, 2007.
出处
《计量学报》
EI
CSCD
北大核心
2007年第2期97-101,共5页
Acta Metrologica Sinica
关键词
计量学
电阻基准
漂移率
量子化霍尔电阻
气压系数
,. Metrology
Resistance standard
Drift
Quantum Hall resistance (QHR)
Atmospheric pressure coefficient (APC)