Pitch and roll sensing using fibre Bragg gratings in multicore fibre

MacPherson, W N and Flockhart, G M H and Maier, R R J and Barton, J S and Jones, J D C and Zhao, D H and Zhang, L and Bennion, I (2004) Pitch and roll sensing using fibre Bragg gratings in multicore fibre. Measurement Science and Technology, 15 (8). pp. 1642-1646. ISSN 0957-0233

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    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.

    ORCID iDs

    MacPherson, W N, Flockhart, G M H ORCID logoORCID: https://orcid.org/0000-0002-8777-7511, Maier, R R J, Barton, J S, Jones, J D C, Zhao, D H, Zhang, L and Bennion, I;