Levitation Experiment Using a High-Temperature Superconductor Coil for a Plasma Confinement Device
Levitation Experiment Using a High-Temperature Superconductor Coil for a Plasma Confinement Device
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使用高温超导线圈进行等离子体约束装置的悬浮实验
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
T. Mito
中科院分区：
文献类型：
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作者：
J. Morikawa;D. Ozawa;Y. Ogawa;N. Yanagi;Sinji Hamaguchi;T. Mito
利用高温超导线圈进行了悬浮实验。用Bi-2223带状导体制造小半径为42 mm的线圈，并将其浸入液氮中。线圈电流通过场冷却方法感应到临界电流值。线圈的电流衰减可以由磁通流动阻力和搭接接头处的法向电阻来解释。高温超导线圈可以悬浮4分钟或更长时间，精度为25-30 µm。
Levitation experiments using a high-temperature superconductor coil have been carried out. A coil with a minor radius of 42 mm was fabricated with a Bi-2223 tape conductor, and immersed in the liquid nitrogen. The coil current was induced by the field-cooling method up to the critical current value. The current decay of the coil can be accounted for by the flux flow resistance and the normal resistance at the lap joint. The high-temperature superconductor coil can be levitated for 4 min or more within an accuracy of 25–30 µm.