Precise comparator for checking of group inductance standard

Author

Skubis, T. ; Met, A. ; Kampik, M.

Author_Institution

Katedra Metrol. i Autom. El., Gliwice, Poland

fYear

1996

fDate

17-21 June 1996

Firstpage

406

Lastpage

407

Abstract

A comparator for the intercomparison of a group inductance standards is described. It enables the independent measurement of inductance- and serial-resistance-differences of two inductance standards. Measurement ranges are /spl plusmn/10 /spl mu/H and /spl plusmn/200 m/spl Omega/ with resolutions of /spl plusmn/1 nH resp. /spl plusmn/20 /spl mu//spl Omega/. The comparator enables an intercomparison of GR 1482-H inductance standards at f=1 kHz. The uncertainties of the measured differences are smaller than /spl plusmn/10 nH and /spl plusmn/0.2 m/spl Omega/. The uncertainties are approximately 30 times smaller than the observed one-year drift of the inductances in the group.

Keywords

comparators (circuits); electric resistance measurement; inductance measurement; measurement errors; measurement standards; 1 kHz; 8 to 8.5 ohm; AC compensator; GR 1482-H inductance standards; group inductance standards intercomparison; inductance measurement; measurement ranges; precise comparator; serial-resistance-difference measurement; uncertainties; Current measurement; Electrical resistance measurement; Equations; Gold; Impedance measurement; Inductance measurement; Instruments; Measurement standards; Measurement uncertainty; Voltage;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 1996 Conference on

Conference_Location

Braunschweig, Germany

Print_ISBN

0-7803-3376-4

Type

conf

DOI

10.1109/CPEM.1996.547137

Filename

547137