An electro-optic fibre sensor with double pass configuration for measuring high ac voltage

Francisco G Peña-Lecona, Juan F Mosiño, Valery N Filippov, R A Martinez-Celorio, Oracio C Barbosa-Garcia

Research output: Contribution to journalArticleScientificpeer-review

5 Citations (Scopus)

Abstract

A new fibre optic sensor suitable for high voltage measurements is introduced. The sensor is based on a double pass configuration of light through a Bi12TiO20 (BTO) photorefractive crystal. To obtain the double pass configuration, a back-reflecting prism with high stability to temperature variations is incorporated in the sensor head. The prism enhances the performance of the sensor allowing the BTO to work in a wide linear region of its transfer function. To prove the feasibility of our fibre optic sensor, one ac periodic wave and transient event of high voltage were measured and reported. The sensor is proved to be robust, linear, and shows high resolution in the detection of voltage impulses.

Original languageEnglish
Article numberPII S0957-0233(04)72524-2
Pages (from-to)1129-1132
Number of pages4
JournalMeasurement Science and Technology
Volume15
Issue number6
DOIs
Publication statusPublished - 13 May 2004
Externally publishedYes
Publication typeA1 Journal article-refereed

Keywords

  • fibre optic sensor
  • Pockels effect
  • voltage sensor
  • sensitivity
  • CRYSTAL

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