Development of an optical fiber transducer applied to the measurement of finger movements

Eric Fujiwara; Yu Tzu Wu; Murilo F. M. Santos; Carlos K. Suzuki

doi:10.1117/12.963471

17 October 2012 Development of an optical fiber transducer applied to the measurement of finger movements

Eric Fujiwara, Yu Tzu Wu, Murilo F. M. Santos, Carlos K. Suzuki

Proceedings Volume 8421, OFS2012 22nd International Conference on Optical Fiber Sensors; 84212H (2012) https://doi.org/10.1117/12.963471
Event: OFS2012 22nd International Conference on Optical Fiber Sensor, 2012, Beijing, China

Abstract

A flexible and low-cost optical fiber transducer based on light attenuation by microbending was designed for the measurement of angular displacements. The transducer was tested for predetermined rotations, presenting a higher sensitivity for angles >10° by spacing the periodicity of the deformers by 2 mm. In addition, the performance on the measurement of angles <10° was also enhanced by the specklegram analysis, yielding to a linear response. Furthermore, the glove-mounted sensor was applied on the detection of the proximal interphalangeal joint, by performing the calibration by artificial neural networks, resulting in calculated angle values compatible to the nominal ones.

Citation Download Citation

Eric Fujiwara, Yu Tzu Wu, Murilo F. M. Santos, and Carlos K. Suzuki "Development of an optical fiber transducer applied to the measurement of finger movements", Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84212H (17 October 2012); https://doi.org/10.1117/12.963471

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