Comparison of a 1 nF Capacitor with a 1 kΩ Resistor Using a Digital Impedance Bridge

被引：0
|
作者：
Wang, Y. [1 ]
Schlamminger, S. [1 ]
Jarrett, D. [1 ]
Panna, A. [1 ]
Koffman, A. D. [1 ]
机构：
[1] NIST, Gaithersburg, MD 20899 USA
来源：
2024 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS, CPEM 2024 | 2024年
关键词：
Digital bridge; capacitance unit; impedance standard; digital sampling; voltage ratio;
D O I：
10.1109/CPEM61406.2024.10646139
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 reports our effort to improve a digital impedance bridge. The limit of the bridge resolution and stability is less than 3 parts in 10(9) for the nominal 1:1 impedance comparison of two 100 pF capacitors. The Type A uncertainty for comparison of a 1 nF capacitor with a 1 k Omega resistor is about 1 part in 10(8), presently limited by the stability of the resistor.
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页数：2
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