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 the Ceramics Magnetic Sensor Fabrication Technology

세라믹 자성 센서 제조기술에 관한 연구

  • Lee, Sang-Heon (Department of Electronics Information Communications Engineering Sun Moon University) ;
  • Lee, Sung-Gap (Department of Electronics and Electrical Engineering, Seonam University)
  • 이상헌 (선문대학교 전자정보통신 공학부) ;
  • 이성갑 (서남대학교 전기전자멀티미디어공학부)
  • Published : 2003.05.16
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Abstract

A magnetic field sensor is fabricated with superconducting ceramics system The prepared material shows the superconductivity at about 95K. The sensor at liquid nitrogen temperature shows the increase in electrical resistance by applying magnetic field. Actually, the voltage drop across the sensor is changed from zero to a value more than $100{\mu}V$ by the applied magnetic field. The change in electrical resistance depends on magnetic field. The sensitivity of this sensor is 2.9 ohm/T. The increase in electrical resistance by the magnetic field is ascribed to a modification of the Josephson junctions due to the penetrating magnetic flux into the superconducting material.

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