Ultra-high-sensitivity two-dimensional bend sensor

Flockhart, G M H and MacPherson, W N and Barton, J S and Kirkendall, C K and Cranch, G A (2006) Ultra-high-sensitivity two-dimensional bend sensor. Electronics Letters, 42 (9). pp. 520-522. ISSN 0013-5194 (https://doi.org/10.1049/el:20060731)

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Abstract

A multicore fibre Fabry-Perot-based strain sensor interrogated with tandem interferometry for bend measurement is described. Curvature in two dimensions is obtained by measuring the difference in strain between three co-located low finesse Fabry-Perot interferometers formed in each core of the fibre by pairs of Bragg gratings. This sensor provides a responsivity enhancement of up to 30 times that of a previously reported fibre Bragg grating based sensor. Strain resolutions of 0.6 n epsilon/Hz(1/2) above 1 Hz are demonstrated, which corresponds to a curvature resolution of similar to 0.012 km(-1)/Hz(1/2).

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• Item metadata

  Item type:	Article
  ID code:	42759
  Dates:	Date Event 27 April 2006 Published
  Subjects:	Technology > Electrical engineering. Electronics Nuclear engineering
  Department:	Faculty of Engineering > Electronic and Electrical Engineering
  Depositing user:	Pure Administrator
  Date deposited:	06 Feb 2013 15:54
  Last modified:	20 Apr 2024 00:18
  URI:	https://strathprints.strath.ac.uk/id/eprint/42759