Deep learning-driven optical fiber sensor for 2D vector flow velocity detection

Haiqing Li

doi:10.1016/j.sna.2026.117874

Deep learning-driven optical fiber sensor for 2D vector flow velocity detection

2026-04-29

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DOI：10.1016/j.sna.2026.117874

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• A biomimetic flow sensor using U-shaped optical fiber enables 2D vector flow velocity detection. • The design captures orthogonal velocity components via cilium-induced optical deflection. • A hybrid ResNet-LSTM model improves velocity and direction prediction accuracy. • The sensor achieves mean velocity and directional errors of 0.0105 m/s and 1.51°. • Features include low cost, EMI immunity, and high corrosion resistance for marine use.

Keywords:

optical fiber sensor

flow velocity detection

deep learning

biomimetic design

marine sensing

Deep learning-driven optical fiber sensor for 2D vector flow velocity detection

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