指先皮膚の機械特性を考慮した触覚ディスプレイ用圧電アクチュエータの製作(<特集>五感情報インタフェース)

DOI Web Site 被引用文献3件 参考文献26件

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  • Development of a Piezoelectric Actuator for Tactile Display Based on Mechanical Characteristics of Fingerpad Surfaces
  • 指先皮膚の機械特性を考慮した触覚ディスプレイ用圧電アクチュエータの製作
  • ユビサキ ヒフ ノ キカイ トクセイ オ コウリョ シタ ショッカク ディスプレイヨウ アツデン アクチュエータ ノ セイサク

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In order to investigate tactile perception characteristics of the human fingerpad for optimal designs of sensory substitution devices, we developed a small piezoelectric bimorph actuator whose frequency characteristics were kept flat in tactilely perceivable frequency range. The parameters for the design of the bimorph were determined by using a mechanical simulation model of the piezoelectric bimorph and the finger skin. To evaluate the performance of the bimorph, we measured frequency-displacement relationships when the fingerpad was vibrated by the piezoelectric bimorph. The experimental results showed that the frequency-displacement relationships were almost the same as the estimation obtained from the mechanical simulation model. The developed bimorph should be able to generate various but precise skin displacement patterns onto a fingerpad in accordance with the wave form of the input voltage to the bimorph.

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