Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)

The Korean Institute of Electrical and Electronic Material Engineers (한국전기전자재료학회)
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A Study on measuring the Initial Permeability of Magnetic Powder considered Demagnetizing factors

반자장계수를 고려한 자성분말의 초투자율 측정에 관한 연구

  • Jun, Hong-Bae (Dept. of Electrical, Electronic & Computer Engineering, Dong-A University) ;
  • Heo, Jin (Dept. of Electrical, Electronic & Computer Engineering, Dong-A University) ;
  • Kim, Chul-Han (Dept. of Electrical, Electronic & Computer Engineering, Dong-A University) ;
  • SaGong, Geon (Dept. of Electrical, Electronic & Computer Engineering, Dong-A University)
  • 전홍배 (동아대학교 전기전자컴퓨터공학부) ;
  • 허진 (동아대학교 전기전자컴퓨터공학부) ;
  • 김철한 (동아대학교 전기전자컴퓨터공학부) ;
  • 사공건 (동아대학교 전기전자컴퓨터공학부)
  • Published : 2000.05.13
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Abstract

In this study, A equipment for measuring the initial permeability of soft-ferrite powder was developed by using a differential transformer coil, and was investigated demagnetizing factors. To measure the initial permeability of magnetic ceramic powder is cumbersome since there are not any measuring equipment and method. Magnetic powder is currently used for a magnetic fluid and microwave absorber materials, and the initial permeability of the magnetic powder is very important to be evaluated a powder for some applications.

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