Distributed humidity sensing based on Rayleigh scattering in polymer optical fibers

Philipp Lenke; Mario Wendt; Sascha Liehr; Katerina Krebber

doi:10.1117/12.866279

9 September 2010 Distributed humidity sensing based on Rayleigh scattering in polymer optical fibers

Philipp Lenke, Mario Wendt, Sascha Liehr, Katerina Krebber

Proceedings Volume 7653, Fourth European Workshop on Optical Fibre Sensors; 76533X (2010) https://doi.org/10.1117/12.866279
Event: (EWOFS'10) Fourth European Workshop on Optical Fibre Sensors, 2010, Porto, Portugal

Abstract

In this document a new distributed sensor based on Rayleigh scattering in polymer optical fibers (POF) is proposed and first measurement results of the proposed sensor are shown. Different from Silica glas optical fibers POF absorb high quantities of water resulting in a change of their molecular structure and thereby reducing the present small scattering centers in areas of high humidity. The interdependence between scattering intensity and relative humidity is being investigated in case of steady cycles as well as stepwise changes of humidity and in the presence of moisture. A quantitative measure of humidity and scattering is presented.

Citation Download Citation

Philipp Lenke, Mario Wendt, Sascha Liehr, and Katerina Krebber "Distributed humidity sensing based on Rayleigh scattering in polymer optical fibers", Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76533X (9 September 2010); https://doi.org/10.1117/12.866279

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