Title :
A quantum voltmeter for precision AC measurements
Author :
Lee, Jeyull ; Nissila, J. ; Katkov, A. ; Behr, R.
Author_Institution :
Phys.-Tech. Bundesanstalt (PTB), Braunschweig, Germany
Abstract :
An AC quantum voltmeter has been developed for precision AC voltage measurements into the kHz range. A special sub-sampling technique is used such that no information of the AC voltage under test is lost. A comparison of the AC quantum voltmeter and an ultra-stable precision waveform generator has been performed. The Allan deviation analysis demonstrates a voltage output stability of 2 × 10-8 in 1 minute at the level of 2.5 VRMS. The measurements are validated with an AC-DC transfer measurement using a planar multijunction thermal converter.
Keywords :
convertors; electric current measurement; sampling methods; stability; voltage measurement; voltmeters; waveform generators; AC quantum voltmeter; AC voltage under test; AC-DC transfer measurement; Allan deviation analysis; planar multijunction thermal converter; precision AC voltage measurement; subsampling technique; time 1 min; ultrastable precision waveform generator; voltage 2.5 V; voltage output stability; Metrology; Optical buffering; Signal generators; Standards; Uncertainty; Voltage measurement; Voltmeters; AC voltage measurement; programmable Josephson system; signal synthesis; standards;
Conference_Titel :
Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4799-5205-2
DOI :
10.1109/CPEM.2014.6898594
