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Title:
SUPERCONDUCTING ELECTROMAGNET DEVICE, AND SUPERCONDUCTING COIL EXCITATION METHOD
Document Type and Number:
Japanese Patent JP2008091923
Kind Code:
A
Abstract:

To provide a very compact autoregulatory superconducting electromagnet device and superconducting coil excitation method which requires no special power supply, and in addition, even at the time of coil quenching, requires no special detection device and no special safety device, by utilizing an indispensable cooler for making a superconducting electromagnet go into a superconductive state, that is, by generating electric power by utilizing temperature difference produced by the cooler.

The superconducting electromagnet device has: a superconducting coil cooled at the superconducting transition temperature or below; and at least one pair of a first thermoelectric element and a second thermoelectric element respectively having different thermoelectric powers which are connected in series between both terminals of the above superconducting coil, and one of which comprises a magnetic material serving as an iron core of the superconducting coil.


Inventors:
ONO MICHITAKA
ITO KOJI
Application Number:
JP2007000258104
Publication Date:
April 17, 2008
Filing Date:
October 01, 2007
Export Citation:
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Assignee:
TOSHIBA CORP
International Classes:
H01F6/04; F28D17/02; H01F6/00; H01L39/04
Domestic Patent References:
JPH01214280A1989-08-28
JPH01248574A1989-10-04
JPH01145802A1989-06-07
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Nakamura Makoto
Kurata Masatoshi
Ryuji Mine
Yoshihiro Fukuhara
Muramatsu Sadao
Ryo Hashimoto