Fundamental investigation on electrostatic travelling-wave transport of a liquid drop

Hiroyuki Kawamoto*, Satoshi Hayashi

*この研究の対応する著者

    研究成果: Article査読

    34 被引用数 (Scopus)

    抄録

    Basic research has been carried out on the transport of a liquid drop and a soft body in an electrostatic travelling field. A conveyer consisting of parallel electrodes was constructed and a four-phase electrostatic travelling wave was applied to the electrodes to transport the drop on the conveyer. The following were clarified by the experiment. (1) Drops and soft bodies can be transported by virtue of the travelling wave in an insulative liquid that is insoluble to the drop, because the drop was charged on the conveyer by friction and driven by the Coulomb force. (2) A drop that covered less than three arrays of the parallel electrode can be transported in the travelling wave field. (3) A threshold voltage exists for the transport. (4) Although the transport was possible not only for insulative but also for conductive drops, the insulative drop can be transported efficiently. (5) The modes of transport can be classified into three categories, namely, a synchronous region where the motion of the liquid drop is in synchrony with the travelling wave, a delayed response regime, and a regime where transport does not occur. (6) Mixing of drops for a chemical reaction was demonstrated on the conveyer with scroll electrodes. A simple model was proposed to simulate the dynamics of the drop in the electrostatic travelling field.

    本文言語English
    ページ(範囲)418-423
    ページ数6
    ジャーナルJournal of Physics D: Applied Physics
    39
    2
    DOI
    出版ステータスPublished - 2006 1 21

    ASJC Scopus subject areas

    • 物理学および天文学(その他)

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