Browse > Article
http://dx.doi.org/10.5302/J.ICROS.2006.12.7.650

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

Lee Wee-Hyuk (울산대학교 전기전자정보시스템)
Woo Kyoung-Hang (울산대학교 전기전자정보시스템)
Choi Won-Ho (울산대학교 전기전자정보시스템)
Lee Jae-Kook (울산대학교 전기전자정보시스템)
Publication Information
Journal of Institute of Control, Robotics and Systems / v.12, no.7, 2006 , pp. 650-657 More about this Journal
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
LPMS (Loose Part Monitoring System); impact signal; envelope; impact position;
Citations & Related Records
연도 인용수 순위
  • Reference
1 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
2 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   DOI
3 J. Louis Tylee, 'On-line failure detection in nuclear power plant instrumentation,' IEEE Trans. Automatic Control, vol, AC-28, pp.406-415, 1983   DOI
4 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
5 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   DOI   ScienceOn
6 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   DOI   ScienceOn
7 R. Sutton, M. J. Parkins, 'Early detection of steam leaks in nuclear plant,' Control'91. International Conference, vol. 1, pp. 75-80, 1991
8 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   DOI   ScienceOn
9 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