Title:
METHOD AND DEVICE FOR CHARACTERISTICS MEASUREMENT OF SUPER-CONDUCTOR
Document Type and Number:
Japanese Patent JP3609190
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To establish a method of measuring super-conductor's characteristics and to provide a characteristics measurement device for a super-conductor in order to evaluate the characteristics of a super-conductor required when designing/manufacturing a super-conduction application device.
SOLUTION: Above a disk-like fixing part 4 which can represent super-conduction state, a disk-like magnetism generation movable part 9 is made to face it with a gap G, and, relating to electromagnetic force characteristics acting between the fixed part 4 and the magnetism generation movable part 9 with the gap length in between, at the initial position where the magnetism generation movable part 9 is so receded from the fixing part 4 that the magnetic field of the magnetism generation movable part 9 does not affect the fixing part 4, the fixing part 4 is initialized to super- conduction state from non-super-conduction state, and, after the magnetism generation movable part 9 is made to approach, while avoiding it contacts to the fixing part 4, its near by specified position in the vertical direction, at constant speed, it is kept standstill for a specified period, then, at constant speed, receded from the fixing part 4 up to the initial position, for measuring approach-recession characteristics of electromagnetic force.
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Inventors:
Hiromasa Higasa
Fumihiko Ishikawa
Yamashita Masaki
Makoto Hirose
Ryoichi Takahata
Yutaka Miyagawa
Fumihiko Ishikawa
Yamashita Masaki
Makoto Hirose
Ryoichi Takahata
Yutaka Miyagawa
Application Number:
JP4478196A
Publication Date:
January 12, 2005
Filing Date:
March 01, 1996
Export Citation:
Assignee:
Shikoku Research Institute Co., Ltd.
Koyo Seiko Co., Ltd.
Koyo Seiko Co., Ltd.
International Classes:
G01R33/12; G01N27/72; (IPC1-7): G01N27/72; G01R33/12
Domestic Patent References:
| JP4172280A | ||||
| JP3160769A | ||||
| JP3020686A |
Attorney, Agent or Firm:
Tamio Nishiwaki