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Published on: August 31, 2021
Development of a measuring system of contact force during braille reading using an optical 6-axis force sensor
T Watanabe1, S Oouchi, T Yamaguchi
1Nat. Inst. of Special Educ., Yokosuka, Kanagawa, Japan. twatanab@nise.go.jp
Abstract:
A system with an optical 6-axis force sensor was developed to measure contact force during braille reading. In using this system, we encountered two problems. One is a variability of output values depending on the contact point. This was solved by using two transformation techniques. The other is that subjects read braille in a different manner from the usual. We compared two manners of braille reading, one-handed vs two-handed, and found a small reduction in reading speed. Using this system, we collected data from four braille readers and quantitatively showed more minute contact force trajectories than those in earlier studies.
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