Abstract
Feasible applications in the industrial regions for the bulk HTS magnets have been investigated in two categories of the strong magnetic field generators and the magnetic levitation devices by active and passive field-trapping, respectively. when we adopt the system to the active field generators, magnetization procedures are necessary. The authors have studied the field-capturing abilities of the HTS bulk magnets on two ways of the activation procedure and the material designing. In the former, we clarified the magnetic flux behavior which invades into bulk magnets, and that the invading flux motion is affected by the previously-existing flux distribution. Therefore, the magnetic flux can be accumulated with successive magnetic fields applications with descending heat generation in order. In the latter, the selective magnetic field invasion was observed between wide- and narrow-growth sector regions. Since the bulk magnets with steep magnetic field distributions deform their own field distribution shape to be uniform by the shielding effect when the ferromagnetic plate was attached on the magnetic pole, we have succeeded in obtaining the uniform magnetic field of several-hundred ppm in the space between the magnetic poles.
| Original language | English |
|---|---|
| Journal | IEEE Transactions on Applied Superconductivity |
| DOIs | |
| Publication status | Accepted/In press - 2018 Aug 28 |
| Externally published | Yes |
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Keywords
- bulk superconductor
- heat generation
- Magnetic flux
- magnetic flux
- Magnetic levitation
- Magnetic noise
- Magnetic shielding
- magnetization
- Magnetostatics
- pulsed field
- Superconducting magnets
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering
Cite this
Feasible Applications of Bulk HTS Magnets and Magnetic Field-Capturing Characteristics in Their Activation Processes. / Oka, Tetsuo; Takeda, Akira; Shimizu, Kouki; Higa, Kazuya; Tsunoda, Shunta; Ogawa, Jun; Fukui, Satoshi; Sato, Takao; Yokoyama, Kazuya; Nakamura, Takashi.
In: IEEE Transactions on Applied Superconductivity, 28.08.2018.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Feasible Applications of Bulk HTS Magnets and Magnetic Field-Capturing Characteristics in Their Activation Processes
AU - Oka, Tetsuo
AU - Takeda, Akira
AU - Shimizu, Kouki
AU - Higa, Kazuya
AU - Tsunoda, Shunta
AU - Ogawa, Jun
AU - Fukui, Satoshi
AU - Sato, Takao
AU - Yokoyama, Kazuya
AU - Nakamura, Takashi
PY - 2018/8/28
Y1 - 2018/8/28
N2 - Feasible applications in the industrial regions for the bulk HTS magnets have been investigated in two categories of the strong magnetic field generators and the magnetic levitation devices by active and passive field-trapping, respectively. when we adopt the system to the active field generators, magnetization procedures are necessary. The authors have studied the field-capturing abilities of the HTS bulk magnets on two ways of the activation procedure and the material designing. In the former, we clarified the magnetic flux behavior which invades into bulk magnets, and that the invading flux motion is affected by the previously-existing flux distribution. Therefore, the magnetic flux can be accumulated with successive magnetic fields applications with descending heat generation in order. In the latter, the selective magnetic field invasion was observed between wide- and narrow-growth sector regions. Since the bulk magnets with steep magnetic field distributions deform their own field distribution shape to be uniform by the shielding effect when the ferromagnetic plate was attached on the magnetic pole, we have succeeded in obtaining the uniform magnetic field of several-hundred ppm in the space between the magnetic poles.
AB - Feasible applications in the industrial regions for the bulk HTS magnets have been investigated in two categories of the strong magnetic field generators and the magnetic levitation devices by active and passive field-trapping, respectively. when we adopt the system to the active field generators, magnetization procedures are necessary. The authors have studied the field-capturing abilities of the HTS bulk magnets on two ways of the activation procedure and the material designing. In the former, we clarified the magnetic flux behavior which invades into bulk magnets, and that the invading flux motion is affected by the previously-existing flux distribution. Therefore, the magnetic flux can be accumulated with successive magnetic fields applications with descending heat generation in order. In the latter, the selective magnetic field invasion was observed between wide- and narrow-growth sector regions. Since the bulk magnets with steep magnetic field distributions deform their own field distribution shape to be uniform by the shielding effect when the ferromagnetic plate was attached on the magnetic pole, we have succeeded in obtaining the uniform magnetic field of several-hundred ppm in the space between the magnetic poles.
KW - bulk superconductor
KW - heat generation
KW - Magnetic flux
KW - magnetic flux
KW - Magnetic levitation
KW - Magnetic noise
KW - Magnetic shielding
KW - magnetization
KW - Magnetostatics
KW - pulsed field
KW - Superconducting magnets
UR - http://www.scopus.com/inward/record.url?scp=85052654928&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85052654928&partnerID=8YFLogxK
U2 - 10.1109/TASC.2018.2867784
DO - 10.1109/TASC.2018.2867784
M3 - Article
JO - IEEE Transactions on Applied Superconductivity
JF - IEEE Transactions on Applied Superconductivity
SN - 1051-8223
ER -