Manipulation of small particles utilizing electrostatic force

Hiroyuki Kawamoto, Kosuke Tsuji

    Research output: Contribution to journalArticle

    22 Citations (Scopus)

    Abstract

    We developed electrostatic system for manipulating small particles with diameters in the range of several micrometers to 100 μm. The electrostatic manipulation probe consists of a monopole pin electrode. When voltage is applied to the electrode, a dielectrophoresis force generated in the nonuniform electrostatic field is applied to the particle near the tip of the electrode. The particle is captured with the application of voltage, and then it is released from the probe by applying a high voltage of the opposite polarity. It is possible to manipulate not only insulative but also weakly conductive particles. A three-dimensional field calculation and a measurement of the adhesion force were conducted to evaluate the force balance for the capture and release of a particle. On the basis of these investigations, we demonstrated the manipulation of actual lunar dust returned by the Apollo 11 lunar surface mission.

    Original languageEnglish
    Pages (from-to)602-607
    Number of pages6
    JournalAdvanced Powder Technology
    Volume22
    Issue number5
    DOIs
    Publication statusPublished - 2011 Sep

    Fingerprint

    Electrostatic force
    Electrodes
    Electrostatics
    Electric potential
    Electrophoresis
    Dust
    Adhesion
    Electric fields

    Keywords

    • Electrophotography
    • Electrostatics
    • Lunar dust
    • Manipulator

    ASJC Scopus subject areas

    • Chemical Engineering(all)
    • Mechanics of Materials

    Cite this

    Manipulation of small particles utilizing electrostatic force. / Kawamoto, Hiroyuki; Tsuji, Kosuke.

    In: Advanced Powder Technology, Vol. 22, No. 5, 09.2011, p. 602-607.

    Research output: Contribution to journalArticle

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