DOI QR코드

DOI QR Code

The Estimation Method of the Impact Position Using the Envelope of Impact Signal

충격 신호의 포락선을 이용한 충격 위치 추정기법

  • 이위혁 (울산대학교 전기전자정보시스템) ;
  • 우경행 (울산대학교 전기전자정보시스템) ;
  • 최원호 (울산대학교 전기전자정보시스템) ;
  • 이재국 (울산대학교 전기전자정보시스템)
  • Published : 2006.07.01

Abstract

The LPMS (Loose Part Monitoring Systems) are used widely for detecting the impact position in the nuclear reactor. There are some major methods to detect impact position in LPMS such as the triangular method, the rectangular method, the circular intersection method and so on. The time difference of these methods are calculated using S0-mode and A0-mode waves of each sensor. In this paper, we propose a method to detect impact position using the enveloped waves of acquired signals. The result of this paper show that the position detecting accuracy and reducing the processing time are proposed method is improved than traditional methods.

Keywords

References

  1. J. H. Kim, S. J. Lee, and P. Seong, 'Investigation on applicability of information theory to prediction of operator performance in diagnosis tasks at nuclear power plants,' IEEE Trans. Nuclear Science, vol. 50, pp. 1238-1252, 2003 https://doi.org/10.1109/TNS.2003.814939
  2. Q. Ii and J. A. Bernard, 'Design and evaluation of an observer for nuclear reactor fault detection,' IEEE Trans. Nuclear Science, vol. 49, pp. 1304-1308, 2002 https://doi.org/10.1109/TNS.2002.1039656
  3. Q. Ii and 1. A. Bernard, 'Design and evaluation of an observer for nuclear reactor fault detection,' IEEE Trans. Nuclear Science, vol. 4. pp. 2493-2497, 2001
  4. R. DOff, F. Kratz, J. Ragot, F. Loisy, and J.-L. Germain, 'Detection, isolation, and identification of sensor faults in nuclear power plants' IEEE Trans. Control Systems Technology, vol. 5,pp. 42-60, 1997 https://doi.org/10.1109/87.553664
  5. R. Sutton, M. J. Parkins, 'Early detection of steam leaks in nuclear plant,' Control'91. International Conference, vol. 1, pp. 75-80, 1991
  6. H.-W. Chang and C. J. Randall, 'Finite-difference timedomain modeling of elastic wave propagation in the cylindrical coordinate system,' Ultrasonics Symposium, vol. 1, pp. 397-402, 1988 https://doi.org/10.1109/ULTSYM.1988.49406
  7. J. Louis Tylee, 'On-line failure detection in nuclear power plant instrumentation,' IEEE Trans. Automatic Control, vol, AC-28, pp.406-415, 1983 https://doi.org/10.1109/TAC.1983.1103240
  8. T. L. Song, 'Filtering theory,' Journal of Control, Automation, and System Engineering, vol. 9, pp. 413-419 Trans. Nuclear Science, vol. 43, pp. 2096-2114, 1996
  9. J. S. Kim, C. S. Ham, J. Lyou, and J.-H. Lee, 'Korea atomic energy research institute,' Advanced I&C Team, Dept. of Electronics, Chungnam National University, Dept. of Electrical Eng., Korea Advanced Institute Science Technology, pp. 487-492, 1994