0902 透明性電極を有する微小流路における界面動電現象の計測(OS9-1 先端的熱流体計測法,オーガナイズドセッション)

概要

論文の詳細を見る
The electrokinetic phenomena such as electrophoresis and electro-osmosis flow are important to control the particle-liquid flow in micro/nano scale. In this paper, we describe a measurement of the AC electro-osmosis flow near the surface of the electrode. A pair of parallel and transparent electrodes with the gap of 50μm is fabricated on the surface of a microchannel wall. Applying AC voltage of 10 kHz and 1〜6 Vpp between the electrodes, the liquid flow near the electrode surface is observed using fluorescent microspheres of 500 nm in diameter. The velocity distribution is measured based on PTV (Particle Tracking Velocimetry). To evaluate the method for the electric field measurement proposed by the authors, the velocity distribution is obtained using two kinds of fluorescent particles with different mobility. The applicability of the measurement method for the AC electro-osmosis is discussed in detail.
社団法人日本機械学会の論文
2009-11-06