TY - JOUR AU1 - Yamagishi, K AU2 - Ogawa, J AU3 - Tsukamoto, O AB - We study the effect of a fluctuating magnetic field, which is one of the technical problems for trapped magnetic fields in a bulk superconductor, to realize a practical bulk superconductor rotating machine. Previous research and other's research has shown that fluctuating magnetic fields reduce the strength of trapped magnetic fields in superconducting bulk modules [1, 2]. This deters development of applications of AC rotating machines because superconducting bulk modules are always exposed to a fluctuating magnetic field. Therefore, it is necessary to develop a method to control decrease of the trapped magnetic field. We propose a method to use the shielding ring of a superconducting wire to achieve this goal and the effects are confirmed experimentally [3]. We are now building test equipment for examining the performance of a shielding ring in a bulk rotating machine. This paper reports the test result for the shielding ring applied to the bulk superconducting rotor that is a part of the test equipment. TI - Effects of fluctuating magnetic fields on a superconducting bulk rotor shielded with superconducting rings JF - Journal of Physics: Conference Series DO - 10.1088/1742-6596/507/3/032060 DA - 2014-05-12 UR - https://www.deepdyve.com/lp/iop-publishing/effects-of-fluctuating-magnetic-fields-on-a-superconducting-bulk-rotor-eBXITf0ZzE SP - 032060 VL - 507 IS - 3 DP - DeepDyve ER -