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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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Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source

Cranch, Geoffrey A. and Flockhart, Gordon M. H. and Kirkendall, Clay K. (2005) Time division multiplexing of fiber Bragg grating sensors using a mode-locked fiber laser source. In: 17th International Conference on Optical Fibre Sensors, Pts 1 and 2. Proceedings of the Society of Photo-Optical Instrumentation Engineers (SPIE) . SPIE, New York, pp. 238-241. ISBN 0819458554

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An efficient multiplexing method for fiber Bragg grating sensors based on a broadband mode-locked laser source and interferometric interrogation is described. The system has the capability to interrogate several hundred fiber Bragg grating sensors on a single fiber, whilst achieving sub-microstrain resolution over bandwidths greater than 100 kHz. A demonstration system with 8 sensors is presented, which achieves strain resolutions less than 213 n epsilon/Hz(1/2) up to 100 Hz.