Picture of athlete cycling

Open Access research with a real impact on health...

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.

Explore open research content by Physical Activity for Health...

Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities

Orr, Philip and Paterson, Alan and Niewczas, Pawel (2012) Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities. In: SPIE Proceedings Vol. 8421. SPIE--The International Society for Optical Engineering.. ISBN 9780819491039

[img]
Preview
PDF (Interferometric time division FBG interrogator and multiplexer with static, dynamic, and absolute wavelength measurement capabilities)
OFS22_2.pdf - Preprint
License: Unspecified

Download (398kB) | Preview

Abstract

We report on the design and preliminary testing of an interferometric interrogator capable of large-scale time-division multiplexing of FBG sensors. The scheme employs a passive algorithm for phase demodulation, allowing changes in FBG sensor reflected wavelengths to be calculated instantaneously upon arrival, and incorporates a technique for identification of initial absolute sensor wavelengths in order to overcome the measurement ambiguity associated with interferometric schemes. The proposed system will allow for high-speed interrogation of large-scale FBG sensor arrays with interferometric resolution and the capability for dynamic, static, and absolute FBG wavelength measurement.