Experimental Study of Electromagnetic Interaction Between a Permanent Magnet and an HTS Coil

Many applications of superconductivity involve the interaction between superconductor coils and magnet or magnetic field. The electromagnetic interaction behavior between a superconducting coil and magnet or magnetic field is essentially different from that between a conventional conductor and magnet. The theory of electromagnetic interaction between superconductor and magnetic field remains to be fully developed. In this study, we carried out a series of experiments to investigate the characteristics of the interaction between HTS coils and permanent magnets. Five groups of tests with different configurations, including different sizes of the magnet, different turns of superconductor coil, different moving speeds and moving patterns of magnet, and different joint resistances of superconductor coil, were carried out. In this paper, we introduce the details and results of these experiments. Detailed analysis and discussions are also presented. The experimental results from this work may be helpful to understand the electromagnetic interaction between superconductor, in particular type II superconductor, and magnetic field.

Automated summary

The interaction behavior between superconductor coils and magnet or magnetic field differs fundamentally from that between conventional conductor and magnet. The theory of this electromagnetic interaction remains to be fully developed. This study conducted experiments to investigate the characteristics of interactions between HTS coils and permanent magnets, which can provide valuable insights into the electromagnetic interaction between superconductor and magnetic field, particularly type II superconductors.