| 摘要 |
PROBLEM TO BE SOLVED: To provide a superconducting coil, by which generation of a voltage caused by abnormality of coil can be detected reliably at an early stage, and abnormality of the coil can be detected at low cost in a simple structure. SOLUTION: In the superconducting coil 1 formed by turning superconducting wire material 20, at least one or more low critical current region 20b having length more than a predetermined length is formed at the superconducting wire material 20. The low critical current region 20b has a critical current value lower than that of a region 20a other than the low critical current region 20b in the superconducting wire material 20. COPYRIGHT: (C)2010,JPO&INPIT |
