| Project/Area Number |
08044113
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| Research Category |
Grant-in-Aid for international Scientific Research
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| Allocation Type | Single-year Grants |
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| Section | Joint Research |
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| Research Field |
計測・制御工学
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| Research Institution | Iwate University |
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Principal Investigator |
OKA Hideo Iwate University Electrical & Electronic Engineering Associate Professor, 工学部, 助教授 (50091640)
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| Co-Investigator(Kenkyū-buntansha) |
OSADA Hiroshi Iwate University Electrical & Electronic Engn.Assistant, 工学部, 助手 (10261463)
SEKI Kyoshiro Iwate University Electrical & Electronic Engn.Professor, 工学部, 教授 (60003860)
NAKATANI Isao National Research Institute for Metals, 金属材料技術研究所・機能特性研究部・第3研究室, 室長
DAWSON F.P. University of Toronto Electrical & Computer Engn.Associate Professor, Associate
LAVERS J.D. University of Toronto Electrical & Computer Engn.Professor, Professor
DOWSON F.P. University of Toronto Dept. of Electrica, Associate
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| Project Period (FY) |
1996 – 1997
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| Project Status |
Completed (Fiscal Year 1997)
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| Budget Amount *help |
¥7,900,000 (Direct Cost: ¥7,900,000)
Fiscal Year 1997: ¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 1996: ¥4,800,000 (Direct Cost: ¥4,800,000)
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| Keywords | Magnetic Fluid / Inductor / Permeability / Variable Inductor / High frequency / Power device / Complex permeability / Power circuit / 磁性流体 |
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| Research Abstract |
Havirg no hysterisis in magnetic characteristic of magnetic fluid, it is possible to decrease the loss. And also it is possible to make heat lower under the high-current excitation. On the other hand, magnetization characteristic of magletic fluid is wide linearity. It will make wave-strain and transient response smmll. Having these interesting characteristics, the inductor using magnetic fluid can be used as a variable inductor for high frequency, which is easily controlled by external magnetic field using permanent magnet. But magnetic fluid has low permeability, so it has no sufficient inductance controlled variable.
The purpose of this project is to solve the mensioned problem. We tried to develope new magnetic fluid which has high permeability and internal excita-tion type variable inductor using magnetic fluid. Conbine type magnetic fluid inductor which is conposed by magnetic fluid inductor and C shape ferrite core is also develloped.
The magnetic characteristics of two types of inductor were comparatively examined. The results show the fundamental principle and characteristic of these two types of inductor.
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