Title :
Characterization of a High-Resolution Analog-to-Digital Converter with an Ac Josephson Voltage Source
Author :
Ihlenfeld, W. G Kürten ; Mohns, E. ; Behr, R. ; Williams, J. ; Patel, P. ; Ramm, G. ; Bachmair, H.
Author_Institution :
Phys.-Technische Bundesanstalt, Braunschweig
Abstract :
An alternating current (ac) Josephson voltage source (Williams, et. al., 2002) was employed to characterize the dynamic behavior of a high-resolution 28-bit (8 frac12-digit) integrating analog-to-digital converter (ADC) of a digital sampling voltmeter (DSV), which is widely used in ac metrology at the Physikalisch-Technische Bundesanstalt - PTB. Extensive measurements were carried out to validate previous mathematical models of the DSV (Ramm, et. al., 1999) when sampling ac signals. Some measurement methods and results thereof are presented
Keywords :
Josephson effect; analogue-digital conversion; digital voltmeters; AC Josephson voltage source; digital sampling voltmeter; dynamic behavior; high resolution analog to digital converter; AC generators; Analog-digital conversion; Clocks; Discrete Fourier transforms; Metrology; Sampling methods; Signal generators; Signal resolution; Testing; Voltage;
Conference_Titel :
Precision Electromagnetic Measurements Digest, 2004 Conference on
Conference_Location :
London
Print_ISBN :
0-7803-8494-6
Electronic_ISBN :
0-7803-8494-6
DOI :
10.1109/CPEM.2004.305469
