Effective Field Observation of Magnetic Samples in Pulsed Fields
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- YAMADA Koji
- 埼玉大学,大分産業創造機構
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- SHIMOJI Hiroyasu
- 大分大学,大分産業創造機構
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- LUO Jiaolian
- 埼玉大学,大分産業創造機構
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- B. BORKOWSKI Edmund
- 大分大学,大分産業創造機構
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- TODAKA Takashi
- 大分大学,大分産業創造機構
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- ENOKIZONO Masato
- 大分大学,大分産業創造機構
Bibliographic Information
- Other Title
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- パルス磁界中における試料内実効磁界計測
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Abstract
The measurements of the effective coercivity (Hc) of magnets are very difficult to determine as a function of the internal fields in samples with arbitrary shapes. We tried to obtain the exact coercive force, M-H curve in high pulsed magnetic fields up to 20T with an induction method using a triple-fold pick-up coil. The values of Hc were found over-estimated more than 20% for the Nd-Fe-B magnets in comparison with those announced by the company, caused physically by the leakage fields in between the sample and probe. The flux distributions were well simulated with the errors using the software of JMAG. The nature of magnetically isotropic microstructure of the raw material in the sintered Nd-Fe-B samples was also clarified in this study.
Journal
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- Journal of the Japan Society of Applied Electromagnetics and Mechanics
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Journal of the Japan Society of Applied Electromagnetics and Mechanics 21 (2), 135-139, 2013
The Japan Society of Applied Electromagnetics and Mechanics
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Keywords
Details 詳細情報について
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- CRID
- 1390001205504955264
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- NII Article ID
- 10031192064
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- NII Book ID
- AN10457520
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- ISSN
- 21879257
- 09194452
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- NDL BIB ID
- 024749928
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed