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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

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Optical fibre sensors and networks for environmental monitoring

Stewart, G. and Culshaw, B. and Johnstone, W. and Whitenett, G.L. and Atherton, K. and McLean, A. (2003) Optical fibre sensors and networks for environmental monitoring. Management of Environmental Quality, 14 (2). pp. 181-190. ISSN 1477-7835

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Abstract

Describes the author's work on the development of fibre sensors and networks for monitoring trace gases such as methane, acetylene, carbon dioxide, carbon monoxide, hydrogen sulphide and for detection of spills of gasoline, diesel and organic solvents, all of which are important in environmental and safety management. As an example, a 45-point fibre optic sensor network has been installed on a landfill site to assess the distribution of methane generation across the site. System operation is based on near-IR absorption and is currently being extended to monitor other gases such as carbon dioxide and hydrogen sulphide. Concurrently, research is being conducted on fibre lasers for the realisation of multi-point, multi-gas monitoring systems. Based on other principles (periodic micro-bending loss effects), detection of hydrocarbon fuel spills has been demonstrated at multiple locations along the length of a specially designed fibre optic cable using standard optical time domain reflectometry (OTDR) measurements.