New group resistance standards

Author

Litvinov, B. ; Ploshinsky, A. ; Semyonov, Y.

Author_Institution

Inst. for Metrol., Acad. of Sci., St. Petersburg, Russia

fYear

2000

fDate

14-19 May 2000

Firstpage

106

Abstract

The standards are based on the groups of metal-foil resistors connected by four-terminal junctions. Their values are chosen approximately in the middle of the range where the most accurate measurements are made in practice. In manufacturing, the connection error is reduced by the method of virtual currents. The stability of resistors determines the value of standards with an error of about 0.02 ppm during 6 months between their measurements using the QHR, The new 1 Ohm group standard may be used for direct link between the voltage of 1 V and the current of 1 A.

Keywords

Calibration; Electric resistance measurement; Quantum Hall effect; Resistors; Transfer standards; 1 ohm; dual transition; four-terminal junctions; group resistance standards; metal-foil resistors; quantum Hall resistance; reduced connection error; resistor stability; unit maintenance; virtual currents method; Current measurement; Electric resistance; Electrical resistance measurement; Manufacturing; Measurement standards; Metrology; Resistors; Size measurement; Stability; Voltage measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements Digest, 2000 Conference on

Conference_Location

Sydney, NSW, Australia

Print_ISBN

0-7803-5744-2

Type

conf

DOI

10.1109/CPEM.2000.850899

Filename

850899