Asymmetric Bias Injection Technique for Drung-Type Superconducting Quantum Interference Devices
Asymmetric Bias Injection Technique for Drung-Type Superconducting Quantum Interference Devices
复制标题
药物型超导量子干涉装置的非对称偏压注入技术
DOI：
10.1143/jjap.32.l1735
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发表时间：
1993
影响因子：
1.5
通讯作者：
Youichi Takada Kado
中科院分区：
文献类型：
--
作者：
G. Uehara;N. Matsuda;K. Kazami;Youichi Takada Kado
提出了一种不对称偏置电流注入方法，用于在不增加额外线圈的情况下降低Drung型超导量子干涉仪（SQUID）中的偏置噪声。实验表明，这种方法比传统的SQUID偏置方法降低了100 ~ 150倍。据透露，APF（附加正反馈）线圈绕组的方向是重要的，在实现这种减少。
An asymmetric bias current injection method is developed to reduce bias-caused noise in Drung-type SQUID (superconducting quantum interference devices) without adding extra coils. A measuring scheme for ∂Φ/∂Ib is tested, and it is demonstrated that the reduction is from 100 to 150 times that attained by the conventional SQUID biasing method. It is revealed that the direction of APF (additional positive feedback) coil winding is important in attaining this reduction.