Effects of modulation schemes on the performance of directly coupled high-Tc dc SQUID magnetometers

Jau Han Chen, Kuen Lin Chen, Hsiao Wen Yu, Ming Jye Chen, Chiu Hsien Wu, Jen Tzong Jeng, Herng Er Horng, Hong Chang Yang

研究成果: 雜誌貢獻Conference article

4 引文 斯高帕斯(Scopus)

摘要

We have designed and fabricated the directly coupled YBa2Cu3O7-δ dc SQUID magnetometers with two different modulation schemes to study the crosstalk effect in the on-chip multi-channel magnetometers. In one of the modulation schemes, the modulation current was directly injected into the SQUID body and the pick-up coil. The modulation efficiency was changed by the ratio of the modulation current flowing through the SQUID to the pick-up coil. In the other schemes, the modulation flux is mutually coupled through an external coil, and the modulation efficiency was changed by the mutual inductance of the external coil and the magnetometer. The results show that the modulation efficiency was varied when the value of self-inductance or the mutual inductance of SQUIDs change. Usually, lower modulation efficiency results in a higher crosstalk. The performance of magnetometers was also influenced by different modulation schemes. Their noise spectrum was compared as evidence.

原文英語
頁(從 - 到)1110-1113
頁數4
期刊IEEE Transactions on Applied Superconductivity
11
發行號1 I
DOIs
出版狀態已發佈 - 2001 三月 1
事件2000 Applied Superconductivity Conference - Virginia Beach, VA, 美国
持續時間: 2000 九月 172000 九月 22

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

指紋 深入研究「Effects of modulation schemes on the performance of directly coupled high-T<sub>c</sub> dc SQUID magnetometers」主題。共同形成了獨特的指紋。

  • 引用此