Title :
Instrumentation system and digital signal processing for studying the characteristics of the acoustic and electrical signals generated by partial discharges
Author :
Rubio-Serrano, Jesus ; Garcia-Souto, Jose A. ; Posada, Julio E.
Author_Institution :
Dept. of Electron. Technol., Carlos III Univ. of Madrid, Leganes, Spain
Abstract :
The aim of this research work is the study and the characterization of electrical and acoustic signals generated by internal partial discharges (PD) in an oil filled chamber. For this purpose, simultaneous measurements were made of three acoustic sensors (ultrasonic PZT) mounted outside on the walls of the chamber and one electric sensor (HF ferrite). The signals were processed with a novel algorithm in order to study the existence of correlations between the electric and the acoustic signals through a statistical analysis of the acoustic emissions that were generated at the same distance.
Keywords :
acoustic signal processing; acoustic transducers; digital signal processing chips; electric sensing devices; partial discharges; signal processing equipment; HF ferrite; PD; acoustic eInissions; acoustic signal; digital signal processing; electric sensor; electrical signals; instrumentation system; internal partial discharges; oil filled chamber; statistical analysis; three acoustic sensors; ultrasonic PZT; Acoustics; Delay; Instruments; Partial discharges; electrical and acoustic combined detection; instrumentation system; pattern recognition; signal-processing;
Conference_Titel :
Industrial Technology (ICIT), 2012 IEEE International Conference on
Conference_Location :
Athens
Print_ISBN :
978-1-4673-0340-8
DOI :
10.1109/ICIT.2012.6210000
