Optical fiber tactile sensor based on fiber specklegram analysis

Eric Fujiwara; Francine D. Paula; Yu Tzu Wu; Murilo F. M. Santos; Egont A. Schenkel; Carlos K. Suzuki

doi:10.1117/12.2263454

23 April 2017 Optical fiber tactile sensor based on fiber specklegram analysis

Eric Fujiwara, Francine D. Paula, Yu Tzu Wu, Murilo F. M. Santos, Egont A. Schenkel, Carlos K. Suzuki

Proceedings Volume 10323, 25th International Conference on Optical Fiber Sensors; 103232N (2017) https://doi.org/10.1117/12.2263454
Event: 25th International Conference on Optical Fiber Sensors, 2017, Jeju, Korea, Republic of

Abstract

An optical fiber tactile sensor based on specklegram analysis is demonstrated. The system consists of microbending transducers attached to semi-rigid plates and distributed in form of array. The specklegrams produced by the multimode fibers are recorded and them the variations on fiber status, related to force magnitude, are assessed by specklegrams correlation. Finally, the spatial information was obtained by using a data fusion approach based on Bayesian inference. The sensor presented ∼0.08 N sensitivity and ∼1 mm resolution. Moreover, the data fusion technique provided the estimation of force distribution over a 30 × 30 mm² area using only 3 fibers.

Citation Download Citation

Eric Fujiwara, Francine D. Paula, Yu Tzu Wu, Murilo F. M. Santos, Egont A. Schenkel, and Carlos K. Suzuki "Optical fiber tactile sensor based on fiber specklegram analysis", Proc. SPIE 10323, 25th International Conference on Optical Fiber Sensors, 103232N (23 April 2017); https://doi.org/10.1117/12.2263454

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