Abstract
A superconducting permanent magnet system capable of generating strong magnetic fields has been constructed by using melt-processed bulk superconductors as trapped field magnets. The trapped field in the open space between two magnetic poles that are set face to face has reached 3.15 T when magnetized by a pulsed-fleld magnetization (PFM) technique. That was operated at 30 K attained by GM-cycle refrigerators. The performance exceeds that of conventional rare earth magnets or large scale electromagnets by far. It was found that the iteratively magnetizing pulsed field operation with reducing amplitude (IMRA) method is very effective in magnetizing the bulk superconductors. The magnet system can be used as a high field generator in various applications.
| Original language | English |
|---|---|
| Pages (from-to) | 1584-1587 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Applied Superconductivity |
| Volume | 13 |
| Issue number | 2 II |
| DOIs | |
| Publication status | Published - 2003 Jun 1 |
| Externally published | Yes |
| Event | 2002 Applied Superconductivity Conference - Houston, TX, United States Duration: 2002 Aug 4 → 2002 Aug 9 |
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Keywords
- Bulk superconductors
- Field generator
- Pulsed field magnetization
- Trapped field magnet
ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Physics and Astronomy (miscellaneous)
Cite this
Construction of a strong magnetic field generator with use of melt-processed bulk superconductors. / Oka, Tetsuo; Yokoyama, K.; Itoh, Y.; Ikuta, H.; Mizutani, U.; Okada, H.; Katagiri, K.; Noto, K.
In: IEEE Transactions on Applied Superconductivity, Vol. 13, No. 2 II, 01.06.2003, p. 1584-1587.Research output: Contribution to journal › Conference article
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TY - JOUR
T1 - Construction of a strong magnetic field generator with use of melt-processed bulk superconductors
AU - Oka, Tetsuo
AU - Yokoyama, K.
AU - Itoh, Y.
AU - Ikuta, H.
AU - Mizutani, U.
AU - Okada, H.
AU - Katagiri, K.
AU - Noto, K.
PY - 2003/6/1
Y1 - 2003/6/1
N2 - A superconducting permanent magnet system capable of generating strong magnetic fields has been constructed by using melt-processed bulk superconductors as trapped field magnets. The trapped field in the open space between two magnetic poles that are set face to face has reached 3.15 T when magnetized by a pulsed-fleld magnetization (PFM) technique. That was operated at 30 K attained by GM-cycle refrigerators. The performance exceeds that of conventional rare earth magnets or large scale electromagnets by far. It was found that the iteratively magnetizing pulsed field operation with reducing amplitude (IMRA) method is very effective in magnetizing the bulk superconductors. The magnet system can be used as a high field generator in various applications.
AB - A superconducting permanent magnet system capable of generating strong magnetic fields has been constructed by using melt-processed bulk superconductors as trapped field magnets. The trapped field in the open space between two magnetic poles that are set face to face has reached 3.15 T when magnetized by a pulsed-fleld magnetization (PFM) technique. That was operated at 30 K attained by GM-cycle refrigerators. The performance exceeds that of conventional rare earth magnets or large scale electromagnets by far. It was found that the iteratively magnetizing pulsed field operation with reducing amplitude (IMRA) method is very effective in magnetizing the bulk superconductors. The magnet system can be used as a high field generator in various applications.
KW - Bulk superconductors
KW - Field generator
KW - Pulsed field magnetization
KW - Trapped field magnet
UR - http://www.scopus.com/inward/record.url?scp=0041973610&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=0041973610&partnerID=8YFLogxK
U2 - 10.1109/TASC.2003.812796
DO - 10.1109/TASC.2003.812796
M3 - Conference article
AN - SCOPUS:0041973610
VL - 13
SP - 1584
EP - 1587
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
IS - 2 II
ER -