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| The Impact of the Electromagnetic Metrology System after the New International System of Units |
| SHAO Haiming1,2,ZHANG Jiangtao1,HUANG Lu1 |
1. National Institute of Metrology,Beijing 10029, China
2. Innovation Center for Advanced Traceability Technology, Beijing 100029, China |
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Abstract 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.
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Received: 15 June 2023
Published: 21 February 2024
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2024, Vol. 45 
