P2-8 電場ピックアップ法による表面振動モードの観察(ポスター発表)

概要

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The electric field tweezers system was employed to excite the surface acoustic mode vibration on the surfaces of gelatin gel and sol. Electric field is applied by a needle electrode set just above the sample surface, which picks up the surface of the dielectric materials. The amplitude of the surface deformation gives the restoring force of surface tension and shear elasticity, while the time constant of the deformation yields by the viscosity. We determined the shear elasticity, viscosity and the surface tension uniquely by measuring the dynamic behavior of the surface changing the gap distance between the needle electrode and the surface.
超音波エレクトロニクスの基礎と応用に関するシンポジウム運営委員会の論文
2006-11-15