Design and realization of an optimal current sensitive CCC

被引：5

作者：

Sesé, J ^{[1
]}

Rietveld, G

Camôn, A

Rillo, C

Vargas, L

Brons, GCS

Hiddink, MGH

Flokstra, J

Rogalla, H

Jaszczuk, W

Altenburg, H

机构：

[1] Univ Zaragoza, CSIC, ICMA, E-50009 Zaragoza, Spain

[2] NMi Van Swinden Lab, NL-2600 AR Delft, Netherlands

[3] Univ Twente, NL-7500 AE Enschede, Netherlands

[4] Fachhsch Munster, Steinfurt, Germany

来源：

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

关键词：

cryogenic electronics; current comparators; current measurement; electrical metrology SQUID's;

D O I：

10.1109/19.769603

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 sensitivity of an overlapped tube cryogenic current comparator (CCC), coupled to a SQUID by means of a flux transformer, is calculated and compared with measurements. Conditions for optimal coupling between the CCC and the SQUID are derived. Based on these, an optimal CCC for precision measurements of very small currents in the nanoampere range has been designed. The paper describes the construction and testing of some parts of the system. An essential element is a home-made de SQUID with low current noise and low inductance input coil equal to that of the CCC overlapped shield, which we use as sensing coil.

引用

页码：370 / 374

页数：5

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