期刊
MEASUREMENT SCIENCE AND TECHNOLOGY
卷 15, 期 8, 页码 1642-1646出版社
IOP PUBLISHING LTD
DOI: 10.1088/0957-0233/15/8/036
关键词
bend measurement; orientation measurement; fibre Bragg grating; fibre optic sensing; multicore fibre
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.
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