Development of 10-Vrms sampling measurement system using AC-programmable Josephson voltage standard

Author

Amagai, Yasutaka ; Maruyama, Mihoko ; Yamamori, Hirotake ; Shih-Fang Chen ; Fujiki, Hiroyuki ; Kaneko, Nobu-hisa

Author_Institution

AIST, Nat. Metrol. Inst. of Japan (NMIJ), Tsukuba, Japan

fYear

2014

fDate

24-29 Aug. 2014

Firstpage

264

Lastpage

265

Abstract

We are developing a 10-Vrms low-frequency sampling measurement system using an AC-programmable Josephson voltage standard (AC-PJVS). Our AC-PJVS circuit is composed of NbN-based over-damped Josephson junctions cooled with a compact cooler. A PJVS chip with 524,288 junctions increases the maximum measurable root-mean-square (rms) voltage up to 10 V at a microwave bias of 15.9 GHz. We have obtained a differential waveform between the stepwise-approximated waveforms of the AC-PJVS and the sinusoidal waveforms of a calibrator.

Keywords

calibration; cooling; electric current measurement; frequency measurement; measurement standards; microwave measurement; programmable circuits; superconducting junction devices; voltage measurement; AC-PJVS circuit; AC-programmable Josephson voltage standard; NbN-based overdamped Josephson junction; calibrator; compact cooler; differential waveform; frequency 15.9 GHz; low-frequency sampling measurement system; maximum measurable root-mean-square; sinusoidal waveform; stepwise-approximated waveform; voltage 10 V; Measurement uncertainty; Microwave measurement; Sampling methods; Semiconductor device measurement; Standards; Voltage measurement; Voltmeters; Analog-digital conversion; Electrical variable measurement; Josephson devices; Josephson effect; uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements (CPEM 2014), 2014 Conference on

Conference_Location

Rio de Janeiro

ISSN

0589-1485

Print_ISBN

978-1-4799-5205-2

Type

conf

DOI

10.1109/CPEM.2014.6898360

Filename

6898360