대한전기학회:학술대회논문집 (Proceedings of the KIEE Conference)

대한전기학회 (The Korean Institute of Electrical Engineers)
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A Fiber-Optic Sensor for Ultrasonic Measurement

  • 심승환 (영남대학교 전자정보공학부) ;
  • 이광식 (영남대학교 전자정보공학부) ;
  • 이동인 (영남대학교 전자정보공학부) ;
  • 이상훈 (포항산업과학연구원) ;
  • 김달우 (포항산업과학연구원)
  • Sim, S.H. (School of Electrical Engineering and Computer Science, Yeungnam University) ;
  • Lee, K.S. (School of Electrical Engineering and Computer Science, Yeungnam University) ;
  • Lee, D.I. (School of Electrical Engineering and Computer Science, Yeungnam University) ;
  • Lee, S.H. (RIST) ;
  • Kim, D.W. (RIST)
  • 발행 : 2001.07.18
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초록

The partial-discharge(PD) is accompanied by physical and chemical phenomena, such as heat, light, noise gas, chemical transformation, electric current, and electromagnetic radiation. The PD can be detected by measuring one of these changes. Although some techniques are employed in this purpose, several obstacles interfere with an on-line measurement. Now, a fiber-optic sensor for detecting ultrasonics is suggested for the on line measurement system with high accuracy. This paper describes the basic principles fiber-optic sensor for ultrasonic measurement.

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