지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2012.1
- 수록면
- 977 - 984 (8page)
이용수
초록· 키워드
오류제보하기
The cross-correlation technique has been widely used for leakage detection of buried pipes, and this technique can be successfully applied when the leakage signal has a high signal-to-noise ratio. In the case of a power plant, the measured leakage signals obtained from the sensors may contain background noise and mechanical noise generated by adjacent machinery. In such a case,the conventional method using the cross-correlation function may fail to estimate the leakage point. In order to enhance the leakage estimation capability of a buried pipe in a noisy environment, an improved cross-correlation technique is proposed. It uses a noise rejection technique in the frequency domain to effectively eliminate the tonal noise due to rotating machinery.
Experiments were carried out to verify the validity of the proposed method. The results show that even in a tonal noisy environment,the proposed method can provide more reliable means for estimating the time delay of the leakage signals.
목차
등록된 정보가 없습니다.
참고문헌 (16)
참고문헌 신청
D. A. Liston / 1992 / Leak Detection Techniques / Journal of New England Water Works Association 1206 (2) : 103 ~ 108
G. J. Weil / 1993 / Non Contact, Remote Sensing of Buried Water Pipeline Leaks Using Infrared Thermography / Water Resources Planning and Management and Urban Water Resources : 404
H. V. Fuchs / 1991 / Ten Years of Experience with Leak Detection by Acoustic Signal Analysis / Applied Acoustics 33 : 1 ~ 19
J. M. Muggleton / 2002 / Wavenumber Prediction of Waves in Buried Pipes for Water Leak Detection / Journal of Sound and Vibration 249 (5) : 939 ~ 954
J. M. Muggleton / 2004 / Axisymmetric Wave Propagation in Fluid-Filled Pipes: Wavenumber Measurements in in Vacuo and Buried Pipes / Journal of Sound and Vibration 270 : 171
G. J. Weil / 1993 / Non Contact, Remote Sensing of Buried Water Pipeline Leaks Using Infrared Thermography / Water Resources Planning and Management and Urban Water Resources : 404
H. V. Fuchs / 1991 / Ten Years of Experience with Leak Detection by Acoustic Signal Analysis / Applied Acoustics 33 : 1 ~ 19
J. M. Muggleton / 2002 / Wavenumber Prediction of Waves in Buried Pipes for Water Leak Detection / Journal of Sound and Vibration 249 (5) : 939 ~ 954
J. M. Muggleton / 2004 / Axisymmetric Wave Propagation in Fluid-Filled Pipes: Wavenumber Measurements in in Vacuo and Buried Pipes / Journal of Sound and Vibration 270 : 171
이 논문의 저자 정보
최근 본 자료
댓글(0)
0