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由商用高临界温度超导线材制成的磁通变压器。

Flux transformers made of commercial high critical temperature superconducting wires.

作者信息

Dyvorne H, Scola J, Fermon C, Jacquinot J F, Pannetier-Lecoeur M

机构信息

Service de Physique de L'Etat Condensé, DSM/DRECAM/SPEC, CEA-Saclay, 91191 Gif-sur-Yvette, France.

出版信息

Rev Sci Instrum. 2008 Feb;79(2 Pt 1):025107. doi: 10.1063/1.2885610.

DOI:10.1063/1.2885610
PMID:18315329
Abstract

We have designed flux transformers made of commercial BiSCCO tapes closed by soldering with normal metal. The magnetic field transfer function of the flux transformer was calculated as a function of the resistance of the soldered contacts. The performances of different kinds of wires were investigated for signal delocalization and gradiometry. We also estimated the noise introduced by the resistance and showed that the flux transformer can be used efficiently for weak magnetic field detection down to 1 Hz.

摘要

我们设计了由商用铋系高温超导带材制成的磁通变压器，通过与普通金属焊接进行封闭。计算了磁通变压器的磁场传递函数与焊接触点电阻的函数关系。研究了不同种类导线在信号去局域化和梯度测量方面的性能。我们还估计了电阻引入的噪声，并表明该磁通变压器可有效地用于低至1Hz的弱磁场检测。

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