Performance of a Flux Locked Series SQUID Array

被引：15

作者：

Foglietti, V. ^{[1
]}

Stawiasz, K. G. ^{[1
]}

Ketchen, M. B. ^{[1
]}

Koch, R. H. ^{[1
]}

机构：

[1] IBM Corp, Thomas J Watson Res Ctr, Yorktown Hts, NY 10598 USA

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1993年 / 3卷 / 04期

关键词：

D O I：

10.1109/77.251805

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 operation of a SQUID array with 100 dc SQUIDs has been demonstrated using a single flux-locked loop. The SQUID array had a maximum dynamic range of +/- 1.3 X 10(8) / root Hz in the low frequency region, a high slewing rate over a wide frequency range, and an extrinsic white noise energy sensitivity of 6 X 10(-31) J / Hz. These data were obtained with a very simple feedback circuit made from three inexpensive operational amplifiers that operated in the dc-feedback mode. The feedback loop did not have any impedance matching circuit between the SQUID array and the room temperature electronics. Our results show that a SQUID array can have a significant impact on those applications that demand good noise performance and a very high dynamic range.

引用

页码：3061 / 3065

页数：5

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