Harmonic Voltage Measurement based on Program Josephson Voltage Standard

被引：0
|
作者：
Jia, Zhengsen [1 ]
Xu, Xitong [1 ]
Wang, Lei [1 ]
Zhang, Jiangtao [1 ]
Pan, Xianlin [1 ]
Shi, Zhaomin [1 ]
机构：
[1] Natl Inst Metrol, Beijing 100029, Peoples R China
来源：
2020 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM) | 2020年
基金：
国家重点研发计划;
关键词：
Quantum voltage; Differential sampling; Weighted Fourier transform; Harmonic measurement;
D O I：
10.1109/cpem49742.2020.9191710
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper investigates the feasibility of applying the program Josephson voltage standard to harmonic measurements. When using AC quantum voltage for harmonic voltage measurement, some data will fluctuate greatly due to the transition and Gibbs phenomenon. If the data during the transition is included in the Fourier transform, the recovered signal amplitude and phase will be distorted. Aiming at this problem, a new harmonic voltage calculation method is proposed, which is weighted Fourier transform. This method can realize accurate measurement of harmonic voltage by resetting the data weight during the transition period to zero.
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页数：2
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