Pitch and roll sensing using fibre Bragg gratings in multicore fibre

W N MacPherson, G M H Flockhart, R R J Maier, J S Barton, J D C Jones, D H Zhao, L Zhang, I Bennion

Research output: Contribution to journalArticle

15 Citations (Scopus)
162 Downloads (Pure)

Abstract

We report the first use of a multicore fibre incorporating fibre Bragg grating strain sensors in each core as a fibre optic pitch and roll sensor. A length of four-core fibre supported at one end forms a cantilever. The differential strains between opposite grating pairs depend on the fibre's orientation in pitch (in the vertical plane) and roll (azimuth) with respect to gravity. Resolutions of +/-2degrees in roll and +/-15degrees in pitch were measured.

Original languageEnglish
Pages (from-to)1642-1646
Number of pages5
JournalMeasurement Science and Technology
Volume15
Issue number8
DOIs
Publication statusPublished - Aug 2004

Keywords

  • pitch and roll sensing
  • fibre Bragg gratings
  • multicore fibre
  • optics
  • quantum optics and lasers
  • condensed matter
  • structural
  • mechanical
  • thermal

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