2202 Tactile Roughness Display Technique using Electro-rheological Fluid

Goto, Masayuki; Takemura, Kenjiro; Kakinuma, Yasuhiro

doi:10.1299/jsmemdt.2012.12.133

Cited by 2 publications

(1 citation statement)

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“…First, as mentioned in Section II.A, the higher yield shear stress could be obtained with the stronger electric field resulting in making the tactile bump sharper. It is also known from our previous study [22] that the electric field of approximately 5 kV/mm or higher is required to give a tactile sensation with the ERF used in this study. In addition, since the insulation breakdown voltage of the film is 4.76 kV, the applied voltage should be lower than this value.…”

Section: A Tactile Bump Displaymentioning

confidence: 87%

Tactile bump display using electro-rheological fluid

Goto

Takemura

2013

2013 IEEE/RSJ International Conference on Intelligent Robots and Systems

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This study proposes a novel technique to display tactile sensation using electro-rheological fluid (ERF). ERF changes its rheological characteristics according to the electric field applied. The ERF used in this study generates relatively high yield stress and behaves as a solid when subjected to a strong electric field. Using this solid-liquid phase transition, we propose a novel device which provides a tactile sensation, i.e., tactile bump display. Applying electric field at a specific position in an ERF chamber, the corresponding ERF behaves as solid at the position. This solid-state ERF gives tactile sensation like a physical bump to a user. We fabricate in this study a prototype, which may realize the above-mentioned idea, and characterize it. We obtained the following results by experiments. First, the tactile bump display could make the users recognize their finger position on a flat surface by creating a tactile bump. Second, we confirmed that the tactile bump might significantly improve the accuracy and the precision of touch typing.

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Section: A Tactile Bump Displaymentioning

confidence: 87%