摘要
从2019年5月起,以4个基本物理常数为基础的新国际单位制正式实施,全面实现了用基本物理常数定义基本单位、基本单位的量子化以及量子基准取代实物基准,开启了计量单位独立复现、不再依赖于国际计量局的全新局面。论述了新SI体系下电学计量体系相比于1990电学计量体系的变化,探讨了国际单位制变革所引发的电磁测量活动。
Since May 2019,the new international system of units(SI)based on the four fundamental physical constants has been formally implemented.The quantization of the basic units and the replacement of the artifact standards by the quantum standards open a new area,which can independently reproduce the fundamental SI units without the Bureau International des Poids et Mesures(BIPM).The major variations of the electrical units between the new SI and the original system in 1990 are mainly introduced.In the meantime,the changes for the electromagnetic measurement activities are also presented.
作者
邵海明
张江涛
黄璐
SHAO Haiming;ZHANG Jiangtao;HUANG Lu(National Institute of Metrology,Beijing 10029,China;Innovation Center for Advanced Traceability Technology,Beijing 100029,China)
出处
《计量学报》
CSCD
北大核心
2024年第2期145-149,共5页
Acta Metrologica Sinica
基金
国家市场监管总局质量技术基础能力建设专项(ANL2303)。
关键词
计量学
国际单位制
电学单位
电磁测量
量子基准
metrology
international system of units
electrical unit
electromagnetic measurement
quantum stardard