Title :
Experimental evidence for low current slope in AC PJVS
Author :
Katkov, A. ; Behr, R.
Author_Institution :
Mendeleyev Inst. for Metrol., St. Petersburg, Russia
Abstract :
This article presents experimental evidence for a very low bias current dependence on the fundamental component for a sum of square wave signals synthesized by a Programmable Josephson Voltage Standard (PJVS). The typical bias current dependence due to the transients can be suppressed, as has been theoretically predicted [1]. Measurements show that the sum of square wave signals has a slope of less than 20 nV/mA (relative voltage change of 2 × 10-8 for a bias current trim of 1 mA) within the quantum voltage step at 1 kHz and 1-V level.
Keywords :
measurement standards; signal synthesis; voltage measurement; AC PJVS; bias current trim; current 1 mA; frequency 1 kHz; low current slope; programmable Josephson voltage standard; quantum voltage step; square wave signal synthesis; theoretical prediction; transient suppression; very low bias current dependence; voltage 1 V; Amplifiers; Current measurement; Frequency measurement; Measurement uncertainty; Standards; Transient analysis; Voltage measurement; AC Josephson Voltage Standard; current slope; precision measurements;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM), 2012 Conference on
Conference_Location :
Washington, DC
Print_ISBN :
978-1-4673-0439-9
DOI :
10.1109/CPEM.2012.6250649
