DocumentCode
236665
Title
Highly accurate differential AC voltage measurements with a single DC voltage reference
Author
Kurten Ihlenfeld, Waldemar G. ; Landim, Regis P.
Author_Institution
Inst. Nac. de Metrol., Qualidade e Tecnol. (INMETRO), Rio de Janeiro, Brazil
fYear
2014
fDate
24-29 Aug. 2014
Firstpage
766
Lastpage
767
Abstract
This paper describes a measurement setup employed to investigate differential voltage measurements to be done with a spectrally pure sine wave and a dc reference. The system enables adjustment, to a very high accuracy, the start phase of ac sampling. Repeatabilities of some 0.1 μV/V were obtained with the help of adaptive digital control.
Keywords
adaptive control; digital control; electric current measurement; reference circuits; voltage measurement; AC sampling; DC reference; adaptive digital control; differential AC voltage measurement; sine wave reference; single DC voltage reference; Band-pass filters; Capacitors; Distortion measurement; Harmonic analysis; Power harmonic filters; Synchronization; Voltage measurement; Ac voltage; Josephson; chopped dc reference; digital signal processing; measurement standards; sampling technique;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location
Rio de Janeiro
ISSN
0589-1485
Print_ISBN
978-1-4799-5205-2
Type
conf
DOI
10.1109/CPEM.2014.6898611
Filename
6898611
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