高温超导块材在旋转场中的电磁响应  

ELECTROMAGNETIC RESPONSE OF HTS BULK IN ROTATING MAGNETIC FIELD

作　　者：丘明[1] 霍海宽[1] 许喆[1] 夏东[1] 林良真[1] 

机构地区：[1]中国科学院电工研究所应用超导重点实验室.前沿探索部,北京100080

出　　处：《低温物理学报》2003年第A01期159-162,共4页Low Temperature Physical Letters

基　　金：国家自然科学基金 (No .50 10 70 10 );清华大学电力系统及发电设备控制和仿真国家重点实验室资助项目~~

摘　　要：高温超导 (HTS)块材在旋转系统中会受到旋转磁场的影响 ,为此我们建立了实验装置用以模拟和反映块材在旋转场中的电磁响应 ,并结合实验现象从理论上初步探讨了旋转磁场中HTS内部磁通渗透过程和能量损耗机理 .HTS bulks are used for developing novel engineering devices, such as high-speed bearing, flywheel system and motor. In these systems, HTS would go through a cycle as in an alternating field during rotation. Hence, the experimental investigation was presented on the change of the levitation force and the trapped field when HTS bulks were exposed to rotating fields. Based on flux dynamics, the observed phenomena were qualitatively analyzed and discussed.

关 键 词：高温超导 旋转磁场 电磁响应 磁通渗透 能量损耗 磁浮力 俘获场 磁悬浮轴承 飞轮储能 

分 类 号：O513[理学—低温物理]