29 March 2018 Vibration monitoring of wind-turbine blades through optical fiber sensors
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In this work a wind turbine blade has been instrumented with two different types of optical fiber sensors. The first one is a traditional chain of Fiber Bragg Grating sensors, able to measure a large number of strain values along the fiber; the second one is a sensor based on Optical Backscatter reflectometry (OBR), able to provide a continuous measurement along the fiber. The two fibers are placed in parallel on the structure and different experimental tests have been carried out to compare the two technologies on a reduced-scale model of a offshore wind turbine blade.
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G. Cazzulani, G. Cazzulani, S. Cinquemani, S. Cinquemani, S. Marabelli, S. Marabelli, I. Bayati, I. Bayati, M. Belloli, M. Belloli, "Vibration monitoring of wind-turbine blades through optical fiber sensors", Proc. SPIE 10601, Smart Materials and Nondestructive Evaluation for Energy Systems IV, 106010O (29 March 2018); doi: 10.1117/12.2297622; https://doi.org/10.1117/12.2297622

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