Measurement Test of Phase Difference in a High Tc Superconducting Magnet

An excitation test of an experimental superconducting magnet constructed using a high Tc superconductive wire (HTSW) was carried out. From the observation of the voltage and the current waveforms in the superconducting magnet, it was confirmed that the phase difference considerably approximated 90deg. Moreover, the phase difference in the experimental superconducting magnet was measured using the proposed electronic circuit. As a result, it was clarified that its proposed electronic circuit for phase difference measurement had relatively high accuracy