Characterization of Flexible Copolymer Optical Fibers for Force Sensing Applications
Identifieur interne : 002807 ( Pmc/Corpus ); précédent : 002806; suivant : 002808Characterization of Flexible Copolymer Optical Fibers for Force Sensing Applications
Auteurs : Marek Krehel ; René M. Rossi ; Gian-Luca Bona ; Lukas J. SchererSource :
- Sensors (Basel, Switzerland) [ 1424-8220 ] ; 2013.
Abstract
In this paper, different polymer optical fibres for applications in force sensing systems in textile fabrics are reported. The proposed method is based on the deflection of the light in fibre waveguides. Applying a force on the fibre changes the geometry and affects the wave guiding properties and hence induces light loss in the optical fibre. Fibres out of three different elastic and transparent copolymer materials were successfully produced and tested. Moreover, the influence of the diameter on the sensing properties was studied. The detectable force ranges from 0.05 N to 40 N (applied on 3 cm of fibre length), which can be regulated with the material and the diameter of the fibre. The detected signal loss varied from 0.6% to 78.3%. The fibres have attenuation parameters between 0.16–0.25 dB/cm at 652 nm. We show that the cross-sensitivies to temperature, strain and bends are low. Moreover, the high yield strength (0.0039–0.0054 GPa) and flexibility make these fibres very attractive candidates for integration into textiles to form wearable sensors, medical textiles or even computing systems.
Url:
DOI: 10.3390/s130911956
PubMed: 24021967
PubMed Central: 3821363
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