To provide an optimized magnetizing method for a superconductor which can magnetize entrapping magnetic field with strong strength in a short period of time.
In the magnetization method, a magnetization coil is held in the vicinity of a bulk superconductor cooled to lower than the superconducting transition temperature, and the bulk superconductor is magnetized by a pulse magnetic field generated by means of the magnetization coil. The magnetic field waveform of the pulse magnetic field has a magnetization increasing stage which controls so that the ratio of an increase of magnetic field strength to a time is reduced, a magnetization stage which holds in a given time period in a high magnetic field area, where a line of magnetic induction can be trespassed into the bulk superconductor, and a magnetization decreasing stage which controls so that the ratio of the decrease with respect to the magnetic field strength is reduced with respect to time.
IZUMI MITSURU
KITANO MASAHIRO
INST NAT COLLEGES TECH JAPAN
KITANO SEIKI KK
| JP2002141222A | 2002-05-17 | |||
| JPH10154620A | 1998-06-09 | |||
| JP2001110637A | 2001-04-20 | |||
| JP2000277333A | 2000-10-06 |
Hiroyuki Nagai
Junpei Okada
Hirohito Katsunuma
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