Concept level evaluation of the optical voltage and current sensors and an arrayed waveguide grating for aero-electrical system applications

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In this paper we present, for the first time, the hybrid fiber-optic voltage and current sensors interrogated using an arrayed waveguide grating (AWG) device. Due to the excellent dynamic capabilities of an AWG-based interrogator and its improved robustness, the proposed system would be suitable for voltage and current monitoring within an aircraft electrical system. The voltage sensor comprises a multilayer piezoelectric stack, acting as a voltage-to-strain transducer, and a fiber Bragg grating (FBG) used to convert voltage induced strain changes within the stack into wavelength shifts. These wavelength shifts are then analysed by an AWG. To measure current, the same sensor type is used to monitor a specially designed ferrite-core current transformer. It is shown that the system is capable of measuring variable frequency of voltage and current waveforms, typical of those anticipated in the next generation aero-electric power systems. It is also demonstrated that the system can be used for voltage and current harmonic analysis and power quality measurement in such networks.
Original languageEnglish
Title of host publicationIEEE Instrumentation and measurement technology conference proceedings (IMTC 2007)
Place of PublicationNew York
Number of pages5
ISBN (Print)1424405882
Publication statusPublished - 2007
Event24th IEEE Instrumentation and Measurement Technology Conference - Warsaw, Poland
Duration: 1 May 20073 May 2007

Publication series

NameIEEE Instrumentation & measurement technology conference proceedings
ISSN (Print)1091-5281


Conference24th IEEE Instrumentation and Measurement Technology Conference


  • arrayed waveguide gratings
  • fiber gratings
  • current measurement
  • optical waveguides
  • voltage
  • sensor systems and applications
  • sensor arrays
  • optical sensors
  • optical arrays
  • monitoring
  • current measurement

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