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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Study on terminal shape and pressure for contact type Ic measurement of long Bi-2223 tape

Bi-2223 초전도 테이프의 접촉식 Ic 측정을 위한 단자 형상 및 압력 조사

  • Ha, D.W. (Korea Electrotechnology Research Institute) ;
  • Yang, J.S. (Korea Electrotechnology Research Institute) ;
  • Ha, H.S. (Korea Electrotechnology Research Institute) ;
  • Oh, S.S. (Korea Electrotechnology Research Institute) ;
  • Kwon, Y.K. (Korea Electrotechnology Research Institute) ;
  • Ryu, K.S. (Korea Electrotechnology Research Institute)
  • 하동우 (한국전기연구원 초전도응용연구그룹) ;
  • 양주생 (한국전기연구원 초전도응용연구그룹) ;
  • 하홍수 (한국전기연구원 초전도응용연구그룹) ;
  • 오상수 (한국전기연구원 초전도응용연구그룹) ;
  • 권영길 (한국전기연구원 초전도응용연구그룹) ;
  • 류강식 (한국전기연구원 초전도응용연구그룹)
  • Published : 2002.04.25
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Abstract

Contact type Ic measurement system is needed to measure Ic continuously for long Bi-2223 tapes. Voltage and current terminals were designed several shapes for 4-probe method Ic measurement. Voltage terminals were made with brass and current terminals were made with Cu. We used 2 kinds of Bi-2223 tapes with different strength. When we measured Ic of Bi-2223 tape with Ag-Mg sheath, The proper weight was 0.3 kg and sharp pin type was better. according to voltage terminal shape and load. In case of Bi-2223 tape with Ag-Mn sheath, the proper terminal weight was 4 kg and sharp pin type was bad. It was possible to make continuous contact type Ic measurement system because We could get proper data - terminal shapes and loads - through these experiments.

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