Electrostatic regolith sampling from asteroids

Hiroyuki Kawamoto

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    Abstract

    To realize reliable regolith sampling for autonomous operation in space, we are developing a new sampling system that employs electrostatic force. This system employs a combination of electrostatic capture and transport of particles. High voltage is applied between parallel screen electrodes of the sampling device. Owing to electrostatic force, particles are captured at the screen electrode of the device. The captured particles are then transported by an electrostatic traveling wave and transferred to a collection capsule. Because gravity is extremely low on small asteroids, the process of sampling particles on asteroids will be easier than that on the Earth. Particles of varying sizes will be transported by some transport conveyers with different pitches of the electrodes because the particle size that can be transported by this device depends on the pitch between the transport electrodes.

    Original languageEnglish
    Title of host publicationEarth and Space 2012 - Proceedings of the 13th ASCE Aerospace Division Conference and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration
    Pages385-392
    Number of pages8
    Publication statusPublished - 2012
    Event13th Biennial ASCE Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments, Earth and Space 2012 and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration - Pasadena, CA
    Duration: 2012 Apr 152012 Apr 18

    Other

    Other13th Biennial ASCE Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments, Earth and Space 2012 and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration
    CityPasadena, CA
    Period12/4/1512/4/18

    ASJC Scopus subject areas

    • Civil and Structural Engineering
    • Environmental Engineering
    • Building and Construction

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  • Cite this

    Kawamoto, H. (2012). Electrostatic regolith sampling from asteroids. In Earth and Space 2012 - Proceedings of the 13th ASCE Aerospace Division Conference and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration (pp. 385-392)