Characteristics of fiber-optic sensor to detect ultrasonic by discharge in transformer and signal analysis with wavelet transform

변압기 내부 방전에 의한 초음파 감지용 광섬유 센서 특성과 측정데이터의 wavelet 분석

  • Published : 2003.07.21

Abstract

This paper introduced the characteristics of fiber-optic Mach-Zehnder interferometer to detect ultrasonic waves by discharges in oil. Noise-reduction method with wavelet and frequency-domain analysis was performed.

Keywords