Paper Info
Title
Characterization of a high-resolution analog-to-digital converter with a Josephson AC voltage source
Abstract
A Josephson ac voltage source was employed to characterize the dynamic behavior of a high-resolution 28-bit (8.5-digit) integrating analog-to-digital converter of a digital sampling voltmeter (DSV), which is widely used in ac metrology at the Physikalisch-Technische Bundesanstalt. Extensive measurements were carried out to validate previous mathematical models of the DSV when sampling ac signals. The characterization method is based on the discrete Fourier transform applied on sampled data of the ADC and on the known Josephson plateau values for quantifying the ratio of ac quantities and the nonlinearities of the DSV. The method shown allows considerable improvement of the accuracy of sampling techniques at low frequencies (de up to some kilohertz) to be attained.
Year
DOI
Venue
2005
10.1109/TIM.2004.843064
IEEE T. Instrumentation and Measurement
Keywords
DocType
Volume
analogue-digital conversion,digital voltmeters,discrete Fourier transforms,signal sampling,superconducting junction devices,AC metrology,Josephson ac voltage source,Josephson arrays,Physikalisch-Technische Bundesanstalt,digital sampling voltmeter,discrete Fourier transform,electric variables measurement,high-resolution ADC,integrating analog-to-digital converter,mathematical models,sampling techniques,synchronous detection,Analog-to-digital conversion (ADC),Josephson arrays,discrete Fourier transform (DFT),electric variables measurement,synchronous detection
Journal
54
Issue
ISSN
Citations 
2
0018-9456
10
PageRank 
References 
Authors
2.16
1
7
Name
Order
Citations
PageRank
Waldemar G. Kürten15217.03
Enrico Mohns24718.56
R. Behr314431.26
Jonathan M. Williams45910.92
Pravin Patel5336.33
Günther Ramm6305.96
Hans Bachmair7102.16