A DOUBLE DC-SQUID BASED MAGNETOMETER

被引：10

作者：

MASLENNIKOV, YV

BELJAEV, AV

SNIGIREV, OV

KAPLUNENKO, OV

MEZZENA, R

机构：

[1] MOSCOW MV LOMONOSOV STATE UNIV,DEPT PHYS,MOSCOW 119899,RUSSIA

[2] RUSSIAN ACAD SCI,INST RADIO ENGN & ELECTR,MOSCOW 103907,RUSSIA

[3] UNIV TRENT,DEPT PHYS,I-38050 TRENT,ITALY

来源：

IEEE TRANSACTIONS ON APPLIED SUPERCONDUCTIVITY | 1995年 / 5卷 / 02期

关键词：

D O I：

10.1109/77.403282

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：

We have developed a double de SQUID based magnetometer with a direct read-out circuit and measured its signal and noise characteristics. The inductances of the input SQUID and SQUID-preamplifier were 120 and 250 pH. Thin-film flux transformers on the separate substrates had an inductance of the order of 1 mu H each and a current sensitivity of 0.54 and 0.32 mu A/Phi(0) for the first and the second SQUIDs, respectively. The intrinsic energy resolution of the fabricated magnetometer for an optimal gain of 58 for the first stage was close to 1.6x10(-32) J/Hz. The dynamic range and the slew rate were about 126 dB and 4x10(4) Phi(0)/s.

引用

页码：3241 / 3243

页数：3

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