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position marking technique for data measured in a scanning hall probe system

스캐닝 홀 프로브 측정 시스템의 데이터 측정 위치 표시 기술

  • 유재은 (한국과학기술원 물리학과) ;
  • 이재영 (배재대학교 물리학과) ;
  • 정예현 (한국과학기술원 물리학과) ;
  • 이상무 (한국과학기술원 물리학과) ;
  • 염도준 (한국과학기술원 물리학과)
  • Published : 2007.09.30

Abstract

We employed home-made position marking module in the scanning Hall probe system. The module is composed of two coils of which gap, a, between wires in a coil is $500{\mu}m$. We appiled 10-35mA of current with 15Hz in the coils and recorded ac corresponding magnetic field signal with respect to measuring time while we measured DC field profiles produced due to superconducting film in a perpendicular magnetic field. We calibrate the position, x, of coils using the measuring time and location of the coils in the holder. The error range was about ${\pm}0.1mm$. We test the module as we applied current of 100A and filed of 1kG in the superconducting tape. It was confirmed that there was no interference between superconducting tape and marking coils.

Keywords

References

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