風向知覚特性に対する風源配置精度と風速分布局所性の影響(<特集>ハプティックコンテンツ)

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  • Effects of Accuracy of Wind Source Alignment and Locality of Wind Velocity Distribution on the Property of Wind Direction Perception(<Special Issue>Haptic Contents)
  • 風向知覚特性に対する風源配置精度と風速分布局所性の影響
  • フウコウ チカク トクセイ ニ タイスル カゼ ゲン ハイチ セイド ト フウソク ブンプ キョクショセイ ノ エイキョウ

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We have examined human properties of wind direction perception by measuring just-noticeable-difference (JND) in discriminating wind direction at the head. In previous experiments, however, it was indicated that slight misalignment of wind sources and individual differences among fan modules might affect JND, if we use discrete fans to provide the winds from various directions. In addition, there was a problem that the wind presented in the experiment was too narrow to reproduce natural uniform wind because we used small fans. In this study, we built an experimental system such that errors due to wind sources are reduced and both local and uniform wind can be provided. By measuring JNDs for local and uniform winds and comparing these results with that of previous experiment, we confirmed that the accuracy of wind source alignment actually affected JND. In addition, we found that the use of uniform wind covering the entire head provided larger JND than using local wind.

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