대한기계학회논문집A (Transactions of the Korean Society of Mechanical Engineers A)

  • 제24권12호
  • /
  • Pages.2891-2898
  • /
  • 2000
  • /
  • 1226-4873(pISSN)
  • /
  • 2288-5226(eISSN)
대한기계학회 (The Korean Society of Mechanical Engineers)
권호 표지
DOI QR코드

DOI QR Code

광섬유를 이용한 상시감시 시스템용 음향방출센서의 개발

Development of Fiber-Optic AE Sensor for On-Line Monitoring System

  • 남재영 (성균관대학교 대학원 기계공학과) ;
  • 정재현 (성균관대학교 대학원 기계공학과) ;
  • 최재붕 (성균관대학교 대학원 기계공학과) ;
  • 김영진
  • Nam, Jae-Yeong (Dept.of Mechanical Engineering, Graduate School of Sungkyunkwan University) ;
  • Jeong, Jae-Hyeon (Dept.of Mechanical Engineering, Graduate School of Sungkyunkwan University) ;
  • Choe, Jae-Bung (Dept.of Mechanical Engineering, Graduate School of Sungkyunkwan University) ;
  • Kim, Yeong-Jin
  • 발행 : 2000.12.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The objective of this paper is to develop a fiber-optic acoustic emission(AE) sensor applicable to on-line monitoring systems which is suitable for long-distance signal transmission. An AE sensor was developed by use of a fiber-optic cantilever and an extrinsic Fabry-Perot interferometer(EEPI). The efficiency of signal processing was improved by driving the high frequency AE signals into the low frequency ones. In order to verify the developed sensor, the tensile and the pencil lead fracture(PLF) tests were performed including the experiment showing the Kaiser effect. Form tests, AE signals were successfully detected in the elastic-plastic deformation range, especially higher signals at the crack propagation. The developed sensor was expected to be used for an on-line monitoring of crack propagation in mechanical system.

키워드

참고문헌

  1. Scout, I. G., 1991, Basic Acoustic Emission, Gordon and Breach Science Approach, pp. 137-139, pp. 22-27
  2. 김영환, 소철호, 권요양, 1993, '광로차 보상회로가 부착된 마이켈슨 간섭계에 의한 탄성파 신호검출,' 비파괴검사학회지, Vol. 13, No. 4, pp. 32-40
  3. Caloran, T. A., Reuben, R. L., Barton, J. S., and Jones, J. D. C., 1997, 'Fiber-Optic Sagnac Interferometer for Noncontact Structural Monitoring in Power Plant Application,' Applied Optics, Vol. 36, No. 1, pp. 380-385
  4. Rao, S. S., 1990, Mechanical Vibration, Addison-Wesley, pp. 182-192
  5. Kinsler, L. E., Frey, A. R., Coppens, A. B. and Sanders, J. V., 1980, Fundamental of Acoustics, John Wiley & Sons, pp. 58-60
  6. 전병선, 김경진, 박현철, 황운봉, 박위상, 1996, '광섬유 센서를 이용한 복합적층보의 진동제어,' 대한기계학회 춘계학술대회논문집(A), pp. 321-324
  7. Crocker, M. J., 1998, Handbook of Acoustics, John Wiley & Sons, pp. 644-648