DocumentCode
2130486
Title
Least-squares fitting of the current drift for a DVM-based comparison method
Author
de Aguilar, J.D. ; Zorzano, R. ; Rodriguez, M.
Author_Institution
DC & LF Standards Lab., Madrid, Spain
fYear
2000
fDate
14-19 May 2000
Firstpage
371
Lastpage
372
Abstract
A method to compensate the variations in the current source using least-squares fitting and its application to the DVM-based comparison method is described. The algorithm allows for nonlinear variations in the current source, and makes it possible to perform measurement series with no need of constant time intervals between them.
Keywords
digital voltmeters; electric resistance measurement; least squares approximations; measurement standards; measurement uncertainty; DVM-based comparison method; compensation method; current drift; current source; least-squares fitting; linear nine-equation system; nonlinear variations; relative uncertainty; resistance standards; series-connected resistances; voltages comparison; Current measurement; Electrical resistance measurement; Equations; Laboratories; Measurement standards; Performance evaluation; Radio frequency; Thermal resistance; Time measurement; Voltage;
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.2000.851030
Filename
851030
Link To Document