대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
권호 표지

M - type부과형 와전류 센서에의한 변태율 측정

EDDY CURRENT MEASUREMENT OF TRANSFORMED FRACTION BY M-TYPE SENSOR

  • 위상봉 (한국 전기 연구소) ;
  • 김한수 (서울대학교 공과대학 전기 공학과) ;
  • 한민구 (서울대학교 공과대학 전기 공학과)
  • Wee, Sang-Bong (Korea Electrotechnology Research Institute) ;
  • Kim, Han-Soo (Dept. of Electrical Engineering, Seoul National University) ;
  • Han, Min-Koo (Dept. of Electrical Engineering, Seoul National University)
  • 발행 : 1990.07.05
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초록

Nondestructive eddy current testing has been used for measuring the electromagnetic properties of metals. It is well known that the conventional eddy current sensors are not effective to measure multi-layer properties. In this paper, the mutual inductance type sensor is studied and transformed fractions of metals are measured. Characteristic factors in eddy current testing are considered and their influences on the testing results are investigated.

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