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Proceedings Paper

Development of an optical fiber transducer applied to the measurement of finger movements
Author(s): Eric Fujiwara; Yu Tzu Wu; Murilo F. M. Santos; Carlos K. Suzuki
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Paper 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.

Paper Details

Date Published: 17 October 2012
PDF: 4 pages
Proc. SPIE 8421, OFS2012 22nd International Conference on Optical Fiber Sensors, 84212H (17 October 2012); doi: 10.1117/12.963471
Show Author Affiliations
Eric Fujiwara, State Univ. of Campinas (Brazil)
Yu Tzu Wu, State Univ. of Campinas (Brazil)
Murilo F. M. Santos, State Univ. of Campinas (Brazil)
Carlos K. Suzuki, State Univ. of Campinas (Brazil)


Published in SPIE Proceedings Vol. 8421:
OFS2012 22nd International Conference on Optical Fiber Sensors
Yanbiao Liao; Wei Jin; David D. Sampson; Ryozo Yamauchi; Youngjoo Chung; Kentaro Nakamura; Yunjiang Rao, Editor(s)

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