A multifrequency quadrature bridge for realization of the capacitance standard at ETL

Author

Nakamura, Yasuhiro ; Fukushima, Akio ; Sakamoto, Yasuhiko ; Endo, Tadashi ; Small, Greig W.

Author_Institution

Electrotech. Lab., Tsukuba, Japan

Volume

48

Issue

2

fYear

1999

fDate

4/1/1999 12:00:00 AM

Firstpage

351

Lastpage

355

Abstract

A quadrature bridge which will be used in the chain of measurements from the QHR to the standard of capacitance at ETL has been developed. The bridge may be balanced at several frequencies including the conventional 10/2π kHz (i.e., ω=10⁴ rad/s). At its present stage of development the bridge achieves a relative standard uncertainty of 2×10^-7 in comparing 1 nF capacitors and 100 kΩ resistors at frequencies from 3/8×10/2π kHz to 10/2π kHz. With further development it is expected that a relative standard uncertainty of about 5×10^-8 will be achieved

Keywords

calibration; capacitance measurement; measurement standards; measurement uncertainty; quantum Hall effect; 1 nF; 100 kohm; AC resistance; balance frequency; calibration; capacitance standard; inductive voltage dividers; measurement chain; multifrequency quadrature bridge; quantised Hall resistance; relative standard uncertainty; Bridge circuits; Calibration; Capacitance measurement; Capacitors; Frequency; Laboratories; Measurement standards; Resistors; Standards development; Uncertainty;

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/19.769599

Filename

769599