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8 September 2010Strain calibration of optical FBG-based strain sensors
A facility for strain sensitivity calibration of optical FBG-based strain sensors according to the German VDI/VDE 2660
guideline was established and characterized. Statistical analysis of several calibration measurement series performed
with one single type of FBG strain sensor and application technique showed a reproducibility of 0.15%. Strain
sensitivities for FBGs inscribed in two different types of optical fibres (GF1B and PR2008) showed significantly
different strain sensitivities of k = 0.7885±0.0026 and k = 0.7758±0.0024, respectively.
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Johannes Roths, Andre Wilfert, Peter Kratzer, Florian Jülich, Rolf Kuttler, "Strain calibration of optical FBG-based strain sensors," Proc. SPIE 7653, Fourth European Workshop on Optical Fibre Sensors, 76530F (8 September 2010);