2011 Fiscal Year Final Research Report
RESEARCH FOR INTERNATIONAL STANDARD ON MEASUREMENT METHOD OF MAGNETIC PROPERTIES BY MEANS OF A SINGLE SHEET TESTER EQUIPPED WITH H-COIL
| Project/Area Number |
20360131
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Power engineering/Power conversion/Electric machinery
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| Research Institution | Doshisha University |
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Principal Investigator |
FUJIWARA Koji 同志社大学, 理工学部, 教授 (20190093)
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| Co-Investigator(Kenkyū-buntansha) |
OKAMOTO Yoshifumi 宇都宮大学, 工学研究科, 助教 (40415112)
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| Project Period (FY) |
2008 – 2011
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| Keywords | 単板磁気特性試験器 / Hコイル / 電磁鋼板 / 磁気特性 / 国際規格 |
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| Research Abstract |
The magnetic properties of electrical steel sheets used for iron cores of electric machines such as transformers and motors are evaluated by means of a testing method based on a single sheet tester(SST) equipped with Japanese proposed H-coil technique for measuring the magnetic field strength. In this research, factors affecting the measurement accuracy of the testing method are examined with the aim of the international standardization. It is clarified that flatness of end surface contacting a specimen is considerably sensitive to the measurement accuracy. Its effect is remarkable, especially in an SST for 500 mm-width specimen proposed by the International Electrotechnical Commission.
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