まとめ
液体の粘度に対する人間の知覚は,ポワー法則に従って,表面粘度と絶対粘度を幅広い範囲で相関させる. この発見は,様々な感覚判断方法にも当てはまります.
科学分野:
- 整形外科医 整形外科医 整形外科医
- 心理物理学 心理物理学とは
- マテリアルサイエンス 材料科学
背景:
- 客観的な物質特性と主観的な人間の知覚の関係を理解することは極めて重要です.
- 流動に対する流体抵抗の尺度である粘度 (viscosity) は,重要な知覚的な意味を持つ重要な物質特性である.
研究 の 目的:
- シリコン液体の絶対粘度とその知覚された表面粘度との関係を定量化する.
- 異なる感覚方法が粘度知覚にどのように影響するかを調査する.
主な方法:
- 参加者は,シリコン液体の表面粘度 (10.395,000 cP) を3つの方法:ボトルの振動/回転,目隠しによる動,開眼による動を用いて数値的に判断した.
- 絶対粘度と表面粘度との関係を特定するために,統計分析を行った.
主要な成果:
- すべての判断方法において,表面粘度が絶対粘度の分数乗として増加した.
- 判定された指数は0.42から0.46.6の範囲であった.
- 感知された粘度が,心理物理力法則に準拠することを示した.
結論:
- 粘度に対する人間の知覚は,定量的に予測可能であり,流体の絶対粘度との力法則関係に従っている.
- 心理物理力の法則は,さまざまな感覚評価技術を通じて,粘度の知覚を効果的にモデル化します.
関連する概念動画
02:57Surface Tension, Capillary Action, and Viscosity
Surface Tension
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01:21Deformations in a Transverse Cross Section
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01:24Surface Tension
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01:22Surface Tension of Fluid
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Surface tension varies with...