A diagnostics procedure based on signal processing of electromagnetic and acoustic emissions aimed at investigating complex electrical and mechanical structures is described. Acquired signals emitted by a structure can be activated by either natural or artificial stimuli; when using artificial and known stimuli, that is to say, stimuli linked to a set of parameters representing "state vectors", the diagnostic method may prove to be very accurate. Signals are processed through the following stages: acquisition, segmentation, parameterization, classification and recognition. Many complex structures were examined, and some relevant real diagnostics cases concerning power transformers and power circuit breakers, are illustrated. Finally, an original implementation of the wavelet technique for the analysis of the acoustic sampled signals is illustrated.

Bartoletti, C., Fazio, G., Marinelli, M., Muzi, F., Sacerdoti, G. (2004). Electromagnetic and acoustic emissions to diagnose complex electrical and mechanical structures. In 2004 IEEE Power Engineering Society General Meeting (pp.942-947).

Electromagnetic and acoustic emissions to diagnose complex electrical and mechanical structures

FAZIO, GIUSEPPE;
2004-06-01

Abstract

A diagnostics procedure based on signal processing of electromagnetic and acoustic emissions aimed at investigating complex electrical and mechanical structures is described. Acquired signals emitted by a structure can be activated by either natural or artificial stimuli; when using artificial and known stimuli, that is to say, stimuli linked to a set of parameters representing "state vectors", the diagnostic method may prove to be very accurate. Signals are processed through the following stages: acquisition, segmentation, parameterization, classification and recognition. Many complex structures were examined, and some relevant real diagnostics cases concerning power transformers and power circuit breakers, are illustrated. Finally, an original implementation of the wavelet technique for the analysis of the acoustic sampled signals is illustrated.
2004 IEEE Power Engineering Society General Meeting
Denver, CO
6 June 2004 through 10 June 2004
Institute of Electrical and Electronics Engineers, IEEE
Rilevanza internazionale
contributo
Settore ING-INF/07 - Misure Elettriche e Elettroniche
English
Digital signal processing; Electromagnetic and acoustic diagnostics; Power system components
Acoustic emissions; Chaos theory; Diagnosis; Digital signal processing; Electric circuit breakers; Electric power systems; Information analysis; Mathematical models; Neurology; Electrical structures; Electromagnetic and acoustic diagnostics; Mechanical structures; Power system components; Electromagnetic wave emission
Intervento a convegno
Bartoletti, C., Fazio, G., Marinelli, M., Muzi, F., Sacerdoti, G. (2004). Electromagnetic and acoustic emissions to diagnose complex electrical and mechanical structures. In 2004 IEEE Power Engineering Society General Meeting (pp.942-947).
Bartoletti, C; Fazio, G; Marinelli, M; Muzi, F; Sacerdoti, G
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/55296
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