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

Published

Author(s)

Yicheng Wang, Stephan Schlamminger, Dean G. Jarrett, Alireza Panna, Andrew D. Koffman

Abstract

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 kΩ resistor is about 1 part in 10^8, presently limited by the stability of the resistor.
Conference Dates
July 8-12, 2024
Conference Location
Denver, CO, US
Conference Title
2024 Conference on Precision Electromagnetic Measurements

Keywords

Digital bridge, capacitance unit, impedance standard, digital sampling, voltage ratio

Citation

Wang, Y. , Schlamminger, S. , Jarrett, D. , Panna, A. and Koffman, A. (2024), Comparison of a 1 nF Capacitor with a 1 kΩ Resistor Using a Digital Impedance Bridge, 2024 Conference on Precision Electromagnetic Measurements, Denver, CO, US (Accessed April 14, 2024)
Created March 27, 2024, Updated April 2, 2024