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Proceedings Paper

Acoustically modulated long period grating sensor for simultaneous viscosity and density measurement
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Paper Abstract

Acoustic waves, generated by exploiting the acousto-optic effect within silica optical fibres, were used to enhance the sensitivity of a long period grating. Most of the physical parameters measured by using an LPG involve simple linear and passive transformations of spectral shifts. However, by adding a temporal element using acoustic waves, parameters that require dynamic assessment become accessible. In this work we demonstrate the measurement of fluid viscosity by measuring the rise time and acousto-optic efficiency. We show results of sensor characterization and suggest the possibility of monitoring a chemical reaction in real time.

Paper Details

Date Published: 8 September 2010
PDF: 4 pages
Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76530Y (8 September 2010); doi: 10.1117/12.865334
Show Author Affiliations
Roberson A. Oliveira, Univ. Tecnológica Federal do Paraná (Brazil)
The Univ. of Sydney (Australia)
Masood Naqshbandi, The Univ. of Sydney (Australia)
Kevin Cook, The Univ. of Sydney (Australia)
John Canning, The Univ. of Sydney (Australia)
Alexandre A. P. Pohl, Univ. Tecnológica Federal do Paraná (Brazil)

Published in SPIE Proceedings Vol. 7653:
Fourth European Workshop on Optical Fibre Sensors
José Luís Santos; Brian Culshaw; José Miguel López-Higuera; William N. MacPherson, Editor(s)

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