Search Advanced
2018 Volume 27 Issue 5
Article Contents
Previous Article Next Article

Kang Yang, Jialei Wang, Xiangyan Kong, Ruihu Yang, Hua Chen. 2018: Optimization of pick-up coils for weakly damped SQUID gradiometers, Chinese Physics B, 27(5): 137-142. doi: 10.1088/1674-1056/27/5/050701
Citation: Kang Yang, Jialei Wang, Xiangyan Kong, Ruihu Yang, Hua Chen. 2018: Optimization of pick-up coils for weakly damped SQUID gradiometers, Chinese Physics B, 27(5): 137-142. doi: 10.1088/1674-1056/27/5/050701
shu

Optimization of pick-up coils for weakly damped SQUID gradiometers

  • State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology(SIMIT),Chinese Academy of Sciences(CAS), Shanghai 200050, China;CAS Center for Excellence in Superconducting Electronics(CENSE), Shanghai 200050, China;University of Chinese Academy of Sciences, Beijing 100049, China

  • Available Online: 01/01/2018
  • Fund Project: the Key Project of Shanghai Zhangjiang National Innovation Demonstration Zone of the Special Development Fund,China(Grant 2015-JD-C104-060)%the National Natural Science Foundation of China(Grant 61741122)
  • The performance of a superconducting quantum interference device (SQUID) gradiometer is always determined by its pick-up coil geometry,such as baseline and radius.In this paper,based on the expressions for the coupled flux threading a magnetometer obtained by Wikswo,we studied how the gradiometer performance parameters,including the current dipole sensitivity,spatial resolution and signal-to-noise ratio (SNR),are affected by its pick-up coil via MatLab simulation.Depending on the simulation results,the optimal pick-up coil design region for a certain gradiometer can be obtained.To verify the simulation results,we designed and fabricated several first-order gradiometers based on the weakly damped SQUID with different pick-up coils by applying superconducting connection.The experimental measurements were conducted on a simple current dipole in a magnetically shielding room.The measurement results are well in coincidence with the simulation ones,indicating that the simulation model is useful in specific pick-up coil design.
  • 加载中
  • 加载中
通讯作者: 陈斌, bchen63@163.com
  • 1. 

    沈阳化工大学材料科学与工程学院 沈阳 110142

  1. 本站搜索
  2. 百度学术搜索
  3. 万方数据库搜索
  4. CNKI搜索
Export Citation
PDF
XML

Article Metrics

Article views(73) PDF downloads(0) Cited by(0)

Access History

Optimization of pick-up coils for weakly damped SQUID gradiometers

  • Available Online: 01/01/2018

Abstract: The performance of a superconducting quantum interference device (SQUID) gradiometer is always determined by its pick-up coil geometry,such as baseline and radius.In this paper,based on the expressions for the coupled flux threading a magnetometer obtained by Wikswo,we studied how the gradiometer performance parameters,including the current dipole sensitivity,spatial resolution and signal-to-noise ratio (SNR),are affected by its pick-up coil via MatLab simulation.Depending on the simulation results,the optimal pick-up coil design region for a certain gradiometer can be obtained.To verify the simulation results,we designed and fabricated several first-order gradiometers based on the weakly damped SQUID with different pick-up coils by applying superconducting connection.The experimental measurements were conducted on a simple current dipole in a magnetically shielding room.The measurement results are well in coincidence with the simulation ones,indicating that the simulation model is useful in specific pick-up coil design.

    HTML

Reference (0)

Catalog

    /

    DownLoad:  Full-Size Img  PowerPoint
    Return
    Return