Ultra-high-sensitivity two-dimensional bend sensor

G. A. Cranch; G. M. H. Flockhart; W. N. MacPherson; J. S. Barton; C. K. Kirkendall

doi:10.1049/el:20060731

Ultra-high-sensitivity two-dimensional bend sensor

G. A. Cranch, G. M. H. Flockhart, W. N. MacPherson, J. S. Barton, C. K. Kirkendall

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24 Citations (Scopus)

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 ne/Hz^1/2 above 1 Hz are demonstrated, which corresponds to a curvature resolution of ~0.012 km^-1/Hz ^1/2. © The Institution of Engineering and Technology 2006.

Original language	English
Pages (from-to)	520-522
Number of pages	3
Journal	Electronics Letters
Volume	42
Issue number	9
DOIs	https://doi.org/10.1049/el:20060731
Publication status	Published - 27 Apr 2006

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title = "Ultra-high-sensitivity two-dimensional bend sensor",

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 ne/Hz1/2 above 1 Hz are demonstrated, which corresponds to a curvature resolution of ~0.012 km-1/Hz 1/2. {\textcopyright} The Institution of Engineering and Technology 2006.",

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AU - Cranch, G. A.

AU - Flockhart, G. M. H.

AU - MacPherson, W. N.

AU - Barton, J. S.

AU - Kirkendall, C. K.

PY - 2006/4/27

Y1 - 2006/4/27

N2 - 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 ne/Hz1/2 above 1 Hz are demonstrated, which corresponds to a curvature resolution of ~0.012 km-1/Hz 1/2. © The Institution of Engineering and Technology 2006.

AB - 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 ne/Hz1/2 above 1 Hz are demonstrated, which corresponds to a curvature resolution of ~0.012 km-1/Hz 1/2. © The Institution of Engineering and Technology 2006.

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SN - 0013-5194

VL - 42

SP - 520

EP - 522

JO - Electronics Letters

JF - Electronics Letters

IS - 9

ER -

Ultra-high-sensitivity two-dimensional bend sensor

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