Induced nuclear reactions: processes – systems – and elements – Testing – sensing – measuring – or detecting a fission reactor... – Leak detection
Patent
1994-08-18
1996-05-14
Walsh, Donald P.
Induced nuclear reactions: processes, systems, and elements
Testing, sensing, measuring, or detecting a fission reactor...
Leak detection
376258, 376255, 376249, 376405, G21C 1700
Patent
active
055175376
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 its 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: 4181027 (1980-01-01), Talbott, Jr.
patent: 4570489 (1986-02-01), Baumaire et al.
patent: 4597294 (1986-07-01), Brill, III et al.
patent: 4901575 (1990-02-01), Bohannan et al.
patent: 4956999 (1990-09-01), Bohannan et al.
patent: 5058434 (1991-10-01), Zaschel
patent: 5257545 (1993-11-01), Au-Yang
patent: 5318109 (1994-06-01), Yamada et al.
patent: 5327358 (1994-07-01), Stubbs
patent: 5327783 (1994-07-01), Au-Yang
Gaubatz Donald C.
Greene David A.
Greene Rosemary A.
Chelliah Meena
General Electric Company
McGinness James E.
Walsh Donald P.
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