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Dynamic Strain Measurements by Fiber Bragg Gratings and a 100 MHz Dispersive Spectrometer

Yohan Barbarin 1 V. Chuzeville 1 V. Colas 1 J.-M Chevalier 2 P. Héreil 1 L. Jacquet 1 J. Luc 1
1 DAM/GRAMAT - GRAMAT
2 CESTA - Centre d'études scientifiques et techniques d'Aquitaine
Abstract : We present dynamic optical strain measurements on a metallic cylinder asymmetrically loaded by explosives bands using 24 fiber Bragg gratings distributed along three fibers. The 100 MHz dispersive spectrometer reveals resonances without any electromagnetic perturbations compared to slower electrical strain gauges.
Keywords : Fiber Bragg Grating Spectrometer Dynamic strain experiments
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Yohan Barbarin, V. Chuzeville, V. Colas, J.-M Chevalier, P. Héreil, et al.. Dynamic Strain Measurements by Fiber Bragg Gratings and a 100 MHz Dispersive Spectrometer. 2019 IEEE Photonics Conference (IPC), Sep 2019, San Antonio, United States. pp.1-2, ⟨10.1109/IPCon.2019.8908530⟩. ⟨cea-02549072⟩

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