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The use of fibre optic sensors to compare the internal strains and pressures produced by different Lamb wave modes

Thursby, G. and Culshaw, B. (2011) The use of fibre optic sensors to compare the internal strains and pressures produced by different Lamb wave modes. [Proceedings Paper]

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Abstract

Lamb waves are a type of guided ultrasound wave that propagate in plate material and have found applications in the fields of structural health monitoring and material properties evaluation. They have modal properties and are divided into two categories, symmetric and antisymmetric. Normally they are measured through detection of surface movement; however analysis shows that the greatest difference in particle motion between the modes is at the centre of the plate. In this paper the use of fibre Bragg gratings and polarimeters, embedded at different locations within the plate, to detect the differences in strain and pressure these ultrasound modes produce by is described.

Item type: Proceedings Paper
ID code: 40805
Keywords: fibre optic sensors, internal strains, pressures, lamb wave modes, guided ultrasound wave , symmetric , antisymmetric, fibre Bragg gratings , polarimeters, Electrical engineering. Electronics Nuclear engineering
Subjects: Technology > Electrical engineering. Electronics Nuclear engineering
Department: Faculty of Engineering > Electronic and Electrical Engineering
Technology and Innovation Centre > Sensors and Asset Management
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Depositing user: Pure Administrator
Date Deposited: 08 Aug 2012 16:05
Last modified: 27 Mar 2014 11:30
URI: http://strathprints.strath.ac.uk/id/eprint/40805

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