To provide a magnetizing device for a bulk superconductor that can magnetize the bulk superconductor to make it have a magnetic field with a magnetic flux density equal to or higher than 1 Tesla at a temperature of 77K, that is capable of cooling in liquid nitrogen, can efficiently utilize magnetizing magnetic flux, and can easily take out a bulk superconductor singly for use after being magnetized, and to provide a magnetizing method and a superconductive synchronous machine which uses the same.
This device is provided with a bulk superconductor, a cooling means for cooling the bulk superconductor to a temperature equal to or lower than the critical temperature for changing it into superconductive state, a magnetizing means having a magnetizing coil wound in almost the same shape as a sectional shape of an a-b axial plane of the bulk superconductor's crystal, and a supporting means that supports the bulk superconductor, such that its crystal c-axis is in parallel with the central axis around which to wind the magnetizing coil and the sectional shape of the a-b axial plane of the superconductor's crystal is conformed to the cross-sectional shape in a direction vertical to the central axis around which to wind the magnetizing coil.
COPYRIGHT: (C)2004,JPO&NCIPI
Mitsuru Izumi
Masahiro Kitano
Tokyo University of Marine Science and Technology
Kitano Seiki Co., Ltd.
| JP1074623A | ||||
| JP2001358007A | ||||
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Junpei Okada
Hirohito Katsunuma
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