Acoustic monitoring of HV equipment with optical fiber sensors

Tae Young Kim, Kwang S. Suh, Jin Ho Nam, T. Takada

Research output: Contribution to journalArticle

16 Citations (Scopus)


This paper presents the preliminary results on the application of optical fiber sensor (OFS) for the measurements of discharging signals in insulating oil. An all-optical-fiber-sensing system using a Mach-Zehnder interferometry technique was constructed. It was found that the pressure wave produced by discharges at the needle-sphere electrodes could be detected by OFS, which was compared with signals from a current probe and PZT sensor. By comparing amplitudes of acoustic signal measured by OFS, a correlation between acoustic and electrical discharge signals was observed.

Original languageEnglish
Pages (from-to)266-270
Number of pages5
JournalIEEE Transactions on Dielectrics and Electrical Insulation
Issue number2
Publication statusPublished - 2003 Apr


  • Acoustic sensor
  • Discharge
  • High voltage equipment
  • Mach-Zehnder interferometry
  • Optical fiber sensor

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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