Measuring and testing – With fluid pressure – Leakage
Patent
1994-08-18
1996-07-09
Williams, Hezron E.
Measuring and testing
With fluid pressure
Leakage
73587, 364550, 364507, 376252, 395 22, G01M 324, G21C 17007
Patent
active
055333834
ABSTRACT:
A system for mapping absolute acoustic noise intensity in a three-dimensional acoustic noise field, and using three-dimensional absolute noise intensities to infer operational or performance characteristics of components or structures within the monitored field. Localized noise sources are extracted using a distant array of transducers, and the absolute intensity can be measured even when totally masked by background noise at the transducer locations. The system includes an integrated sensor installation; a neural network detection system algorithm; a zoom system to precisely examine a small region in the steam generator vessel; a fuzzy logic system detection algorithm; and an expert detection system. The signal processing subsystem operates at three different levels of detection. At the top level of detection a trained neural network system monitors the vessel length for any indication of a leak. The proposed approach uses discriminators which do not require any beamforming of the sensor signals. The presence of a leak and the general location in the vessel is determined using a fuzzy logic expert system. The leak indications are passed to a second level of detection: a beamformed system which will monitor the indicated portion of the vessel. A third level of detection systematically monitors the tagged locations to determine if a leak is really present, remaining on the specific locations to detect a leak above the defined threshold to a high degree of accuracy. The actions to be taken will be controlled by a second fuzzy logic expert interface controller.
REFERENCES:
patent: 3822586 (1974-07-01), Pollock
patent: 3858439 (1975-01-01), Nakamura
patent: 4033179 (1977-07-01), Romrell
patent: 4181027 (1980-01-01), Talbott, Jr.
patent: 4570489 (1986-02-01), Baumaire et al.
patent: 4640121 (1987-02-01), Leuker et al.
patent: 4901575 (1990-02-01), Bohannan et al.
patent: 4979124 (1990-12-01), Sachse et al.
patent: 5046019 (1991-09-01), Basehore
patent: 5247584 (1993-09-01), Krogmann
patent: 5257545 (1993-11-01), Au-Yang
patent: 5270950 (1993-12-01), Conley et al.
patent: 5361636 (1994-11-01), Farstad et al.
Cox, E., "Integrating Fuzzy Logic into Neural Networks", AI Expert, Jun. 1992, pp. 43-47.
Ungar, L. H. et al., "Adaptive Networks For Fault Diagnosis and Process Control," Computers Chem. Engng, vol. 14, No. 4/5, Dec. 1990, pp. 561-572.
Zwingelstein, G. et al., "Applications of Expert Systems and Neural Networks For the Condition Monitoring and Inspection of French Nulcear Power Plants", Proceedings of the American Power Conference, Dec. 1990, pp. 895-900.
Gaubatz Donald C.
Greene David A.
Greene Rosemary A.
General Electric Company
Larkin Daniel S.
McGinness James E.
Williams Hezron E.
LandOfFree
Integrated acoustic leak detection processing system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated acoustic leak detection processing system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated acoustic leak detection processing system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1859837