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Discharge acoustic signal detection in insulating oil using the optical fiber Sagnac interferometer
- Source :
- The Journal of the Acoustical Society of America. 108:2529-2529
- Publication Year :
- 2000
- Publisher :
- Acoustical Society of America (ASA), 2000.
-
Abstract
- In this paper, an optical fiber sensor (OF sensor) utilizing the principal of the Sagnac interferometer was proposed to detect the discharge acoustic signals which generated from a needle‐sphere electrode system in insulating oil. The performance of the OF sensor was checked by a sinusoidal calibration signal generated by a PZT actuator at 198 kHz. The detected discharge signals consisted of the acoustic signal and electrical noise. The noise signal could be removed by a digital low‐pass filter. It was demonstrated that the OF sensor in this research had a possibility to detect the discharge acoustic signals in the power apparatus.
Details
- ISSN :
- 00014966
- Volume :
- 108
- Database :
- OpenAIRE
- Journal :
- The Journal of the Acoustical Society of America
- Accession number :
- edsair.doi...........c0cb0318887e54a8e9d08c97c3af6307