Skip to main navigation Skip to search Skip to main content

Optimal Design of the Self-shielded Shim Coil Combined with Target Points

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This research proposes a self-shielded saddle shim coil design technique, based on the magnetic field data of the target field points, to counterbalance the coupling effect of the magnetic shield on the coil in the utilization of atomic sensors. This coil is composed of two nested saddle coils: the main coil and the shielding coil. The optimization function, which characterizes the internal homogeneity of the magnetic field and attenuation of the external field, is determined by the magnitude of magnetic induction at both internal and external points of the coil. The NSGA-II optimization algorithm was then used to solve the geometrical parameters of the coil, with the optimization function serving as the optimization criterion to attain the parametric solution. Based on the proposed optimized method, a self-shielded coil was designed and tested in a cylindrical ferrite shield barrel. Results from both simulation and experimentation demonstrate a decrease in the coil constant due to the coupling effect of magnetic shield and coil from 58.96% to 0.54%, while the coil designed preserves the magnetic field uniformity in the central region in comparison to the classic saddle coil. This method is suitable for applications where the magnetic shield is combined with coils.

Original languageEnglish
Title of host publicationProceedings of 2023 IEEE 16th International Conference on Electronic Measurement and Instruments, ICEMI 2023
EditorsJuan Wu, Jiali Yin
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages176-183
Number of pages8
ISBN (Electronic)9798350327144
DOIs
StatePublished - 2023
Event16th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2023 - Harbin, China
Duration: 9 Aug 202311 Aug 2023

Publication series

NameProceedings of 2023 IEEE 16th International Conference on Electronic Measurement and Instruments, ICEMI 2023

Conference

Conference16th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2023
Country/TerritoryChina
CityHarbin
Period9/08/2311/08/23

Keywords

  • NSGA-II
  • ferrite shield
  • self-shielded coils
  • target field point

Fingerprint

Dive into the research topics of 'Optimal Design of the Self-shielded Shim Coil Combined with Target Points'. Together they form a unique fingerprint.

Cite this