Testing the New Generation of Low-Frequency Current Comparators

被引：0

作者：

Satrapinski, A. ^{[1
]}

Goetz, M. ^{[2
]}

Pesel, E. ^{[2
]}

Fletcher, N. ^{[3
]}

Gournay, P. ^{[3
]}

Rolland, B. ^{[3
]}

机构：

[1] VTT Tech Res Ctr Finland Ltd, Ctr Metrol MIKES, POB 1000, Espoo 02044, Finland

[2] PTB, Braunschweig, Germany

[3] BIPM, Sevres, France

来源：

2016 CONFERENCE ON PRECISION ELECTROMAGNETIC MEASUREMENTS (CPEM 2016) | 2016年

关键词：

Resistance measurement; CCC; current comparator; low frequency; measurement uncertainty; sensitivity;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

Improved magnetic materials open the perspective of operating room-temperature current comparators at lower frequency without compromising metrological accuracy. Two prototypes of low-frequency current comparator (LFCCs) have been successfully tested in precision resistance ratio measurements at drive frequencies of 0.5 Hz and 1 Hz using the BIPM's bridge setup with a recently realized frequency extension. These measurements have been performed using standard resistors of 10 k Omega, 1 k Omega and 100 Omega nominal values as well as the quantized Hall resistance (QHR) of GaAs and graphene devices.

引用

页数：2

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