Title :
Acoustic emission measurements of acoustically induced cavitation bubbles in insulating oils
Author :
Boczar, T. ; Szmechta, M. ; Zmarzly, D.
Author_Institution :
Dept. of Electr. Eng., Opole Univ. of Technol., Opole
fDate :
June 30 2008-July 3 2008
Abstract :
Acoustic emission measurement results of acoustically induced cavitation bubbles in insulating oil are presented in this paper. Spectral analysis of acquired by a broadband transducer acoustic emission signals is proposed as a diagnostic tool for estimation of aging properties of mineral insulating oils. The article describes the main parts of the designed and built measurement apparatus used for acoustic cavitation investigation in insulating oils. In this note representative results of the experimental data taken from the apparatus are shown.
Keywords :
acoustic emission testing; ageing; bubbles; cavitation; insulating oils; insulation testing; nonlinear acoustics; power transformer insulation; acoustic emission measurement; acoustically induced cavitation bubbles; aging properties; broadband transducer acoustic emission signals; mineral insulating oils; power transformer insulation; spectral analysis; Acoustic emission; Acoustic measurements; Acoustic transducers; Frequency; Minerals; Oil insulation; Petroleum; Power transformer insulation; Power transformers; Signal generators;
Conference_Titel :
Dielectric Liquids, 2008. ICDL 2008. IEEE International Conference on
Conference_Location :
Futuroscope-Chasseneuil
Print_ISBN :
978-1-4244-1585-4
Electronic_ISBN :
978-1-4244-1586-1
DOI :
10.1109/ICDL.2008.4622514
