Precision high-value resistance scaling with a two-terminal cryogenic current comparator

被引：16
|
作者：
Hernandez-Marquez, F. L. [1 ]
Bierzychudek, M. E. [2 ]
Jones, G. R., Jr. [3 ]
Elmquist, R. E. [3 ]
机构：
[1] Ctr Nacl Metrol, Queretaro 76900, Mexico
[2] Inst Nacl Tecnol Ind, Buenos Aires, DF, Argentina
[3] NIST, Gaithersburg, MD 20899 USA
来源：
REVIEW OF SCIENTIFIC INSTRUMENTS | 2014年 / 85卷 / 04期
关键词：
M-OMEGA; SERIES; SYSTEM; BRIDGE;
D O I：
10.1063/1.4869240
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
We describe a cryogenic two-terminal high-resistance bridge and its application in precision resistance scaling from the quantized Hall resistance (QHR) at R-H = R-K/2 = 12 906.4035 Omega to decade resistance standards with values between 1 M Omega and 1 G Omega. The design minimizes lead resistance errors with multiterminal connections to the QHR device. A single variable voltage source and resistive ratio windings are utilized to achieve excellent dynamic stability, which is not readily obtained in low-current measurements with conventional cryogenic current comparators (CCCs). Prototypes of this bridge have been verified by a successful international comparison of high-resistance scaling using two-terminal CCCs in the national metrology institutes of Argentina, Mexico, and the United States. (C) 2014 AIP Publishing LLC.
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页数：6
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