Calibration System for Zener Voltage Standards Using a 10 V Programmable Josephson Voltage Standard at NMIJ

Author

Maruyama, Michitaka ; Iwasa, Akio ; Yamamori, Hirotake ; Shih-Fang Chen ; Urano, Chiharu ; Kaneko, Nobu-hisa

Author_Institution

Nat. Metrol. Inst. of Japan, Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan

Volume

64

Issue

6

fYear

2015

fDate

Jun-15

Firstpage

1606

Lastpage

1612

Abstract

We have developed a calibration system for the Zener voltage standards using a programmable Josephson voltage standard (PJVS) for liquid-helium consumption reduction and improvement in the calibration performance. The PJVS array is composed of 524288 niobium nitride (NbN)-based overdamped Josephson junctions and is cooled by a 10-K compact cooler. To verify the validity of the system, indirect and direct comparisons of the PJVS system and our conventional Josephson voltage standard system have been carried out. As a result, an agreement within a relative expanded uncertainty of 8.4 × 10^-10 was obtained for a nominal voltage of 10 V. We also discuss the uncertainty sources in the calibration of the Zener voltage standards using our PJVS system.

Keywords

calibration; cooling; measurement standards; measurement uncertainty; niobium compounds; voltage measurement; NMIJ; NbN; PJVS array; Zener voltage standard; calibration system; compact cooler; liquid-helium consumption reduction; measurement uncertainty; overdamped Josephson junction; programmable Josephson voltage standard; temperature 10 K; voltage 10 V; Arrays; Calibration; Current measurement; Semiconductor device measurement; Standards; Uncertainty; Voltage measurement; Calibration; Josephson junction array; Zener voltage standard; Zener voltage standard.; dc voltage; liquid helium; mechanical cooler; programmable Josephson voltage standard (PJVS);

fLanguage

English

Journal_Title

Instrumentation and Measurement, IEEE Transactions on

Publisher

ieee

ISSN

0018-9456

Type

jour

DOI

10.1109/TIM.2015.2411998

Filename

7072558