Temperature compensation for a piezoelectric fiber-optic voltage sensor

Research output: Chapter in Book/Report/Conference proceedingConference contribution book

14 Citations (Scopus)

Abstract

In this paper we demonstrate a temperature compensation technique for the previously developed hybrid voltage sensor that employs a single fiber Bragg grating (FBG) bonded to a piezoelectric stack element. The FBG is used to measure voltage-induced strain within the piezoelectric transducer, and its wavelength readings can be calibrated to recover the instantaneous voltage value. Since only the ac voltage measurement is required in the given application, the local temperature is recovered by way of discriminating between the semi-static temperature signal and the dynamic voltage signal in frequency domain using low-pass filtering. Knowing the thermal behavior of the voltage sensor, voltage readings are readily corrected using the local temperature information. The transducer was thermally cycled between 20 and 100degC, and the proposed method provided compensation of temperature induced errors from 2%/100degC down to the experimental error below 0.5% (full scale output)

Original languageEnglish
Title of host publication2006 IEEE instrumentation and measurement technology conference proceedings, volumes 1-5
Place of PublicationNew York
PublisherIEEE
Pages1994-1998
Number of pages5
ISBN (Print)9780780393592
DOIs
Publication statusPublished - 2006
EventIMTC 2006 – Instrumentation and Measurement Technology Conference - Sorrento, Italy
Duration: 24 Apr 200627 Apr 2006

Publication series

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

Conference

ConferenceIMTC 2006 – Instrumentation and Measurement Technology Conference
CountryItaly
CitySorrento
Period24/04/0627/04/06

Keywords

  • fiber bragg grating sensors
  • temperature compensation
  • piezoelectric transducers
  • hysteresis
  • electrical submersible pumps
  • dynamic voltage scaling
  • wavelength measurement
  • voltage measurement
  • temperature sensors
  • strain measurement
  • optical fiber sensors
  • fiber gratings
  • bonding
  • bragg gratings

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