26 June 2017 Fiber Bragg gratings strain measuring system and a sensor calibration setup based on mechanical nanomotion transducer
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Abstract
Fiber Bragg grating (FBG) strain sensors are powerful tools for structural health monitoring applications. However, FBG sensor fabrication and packaging processes can lead to a non-linear behavior, that affects the accuracy of the strain measurements. Here we present a novel nondestructive calibration technique for FBG strain sensors that use a mechanical nanomotion transducer. A customized calibration setup was designed based on dovetail-type slideways that were mechanized using a stepping motor. The performance of the FBG strain sensor was investigated through analysis of experimental data, and the calibration curves for the FBG strain sensor are presented.
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Vladimir A. Lazarev, Vladimir A. Lazarev, Stanislav O. Leonov, Stanislav O. Leonov, Mikhail K. Tarabrin, Mikhail K. Tarabrin, Valerii E. Karasik, Valerii E. Karasik, } "Fiber Bragg gratings strain measuring system and a sensor calibration setup based on mechanical nanomotion transducer", Proc. SPIE 10329, Optical Measurement Systems for Industrial Inspection X, 103292F (26 June 2017); doi: 10.1117/12.2270160; https://doi.org/10.1117/12.2270160
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