Title :
Uncertainty evaluation of sampling measurement system using AC-programmable Josephson voltage standard
Author :
Shih-Fang Chen ; Amagai, Yasutaka ; Maruyama, Mihoko ; Kaneko, Nobu-hisa
Author_Institution :
Center for Meas. Stand. (CMS), Ind. Technol. Res. Inst. (ITRI), Hsinchu, Taiwan
Abstract :
We have evaluated the uncertainty in the differential sampling measurement of 10 Vrms waveform synthesis based on an AC-programmable Josephson voltage standard (AC-PJVS) with a modified digital voltmeter (DVM). The error due to sampling timer is much reduced with an external 20 MHz frequency reference for the DVM. The type B uncertainty level of smaller than 1 μV/V is expected for the differential sampling measurement of a 10 Vrms sine wave generated by a calibrator.
Keywords :
calibration; digital voltmeters; measurement standards; measurement uncertainty; sampling methods; superconducting junction devices; voltage measurement; waveform generators; AC-PJVS; AC-programmable Josephson voltage standard; DVM; calibrator; differential sampling measurement uncertainty evaluation; digital voltmeter; frequency 20 MHz; sine wave generation; type B uncertainty; waveform synthesis; Frequency measurement; Measurement uncertainty; Relays; Standards; Switches; Uncertainty; Voltage measurement; AC-programmable Josephson voltage standard (AC-PJVS); Josephson junction array; differential sampling; digital voltmeter; electromotive force; offset voltage; uncertainty;
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.2014.6898357
