A cryogenic current comparator bridge for resistance measurements at currents of up to 100 A

被引：10

作者：

Williams, JM ^{[1
]}

Kleinschmidt, P ^{[1
]}

机构：

[1] Natl Phys Lab, Ctr Electromagnet Metrol, Teddington TW11 0LW, Middx, England

来源：

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT | 1999年 / 48卷 / 02期

关键词：

cryogenic current comparator; resistance;

D O I：

10.1109/19.769604

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：

The use of cryogenic current comparators at NPL has been limited so far to currents of 100 mA, A new current comparator with a maximum current capacity of 100 A has been developed and forms the basis of a resistance ratio bridge for low value resistors with a relative uncertainty of approximately 10(-7) or better.

引用

页码：375 / 378

页数：4

共 4 条

[1] IRONLESS CRYOGENIC CURRENT COMPARATORS FOR AC-APPLICATIONS AND DC-APPLICATIONS [J].

GROHMANN, K ;

HAHLBOHM, HD ;

LUBBIG, H ;

RAMIN, H .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1974, IM23 (04) :261-263

[2] CRYO CURRENT COMPARATOR AS A CALCULABLE DC RATIO STANDARD [J].

GROHMANN, K ;

HAHLBOHM, HD ;

HECHTFISCHER, D .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1979, 28 (03) :205-211

[3] AN AUTOMATED CRYOGENIC CURRENT COMPARATOR RESISTANCE RATIO BRIDGE [J].

WILLIAMS, JM ;

HARTLAND, A .

IEEE TRANSACTIONS ON INSTRUMENTATION AND MEASUREMENT, 1991, 40 (02) :267-270

[4]

WILLIAMS JM, 1993, 6 BRIT EL MEAS C TED

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