Laboratory calibration measurements of a piezoelectric lead zirconate titanate cosmic dust detector at low velocities

S. Takechi, K. Nogami, T. Miyachi, M. Fujii, Nobuyuki Hasebe, T. Iwai, S. Sasaki, H. Ohashi, H. Shibata, E. Grün, R. Srama, N. Okada

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A cosmic dust monitor for use onboard a spacecraft is currently being developed using a piezoelectric lead zirconate titanate element (PZT). Its characteristics of the PZT sensor is studied by ground-based laboratory impact experiments using hypervelocity particles supplied by a Van de Graaff accelerator. The output signals obtained from the sensor just after the impact appeared to have a waveform that was explicitly related to the particle's impact velocity. For velocities less than ∼6 km/s, the signal showed an oscillation pattern and the amplitude was proportional to the momentum of the impacting particle. For higher velocities, the signal gradually changed to a single waveform. The rise time of this single waveform was proportional to the particle's velocity for velocities above ∼6 km/s. The present paper reports on results for the low velocity case and especially discusses the effect of an outer coating of the sensor with a paint, which is used to reduce heating by solar radiation.

    Original languageEnglish
    Pages (from-to)905-909
    Number of pages5
    JournalAdvances in Space Research
    Volume43
    Issue number6
    DOIs
    Publication statusPublished - 2009 Mar 16

    Keywords

    • BepiColombo mission
    • Cosmic dust
    • Dust detector
    • Lead zirconate titanate (PZT)
    • Mercury Dust Monitor (MDM)
    • Piezoelectricity

    ASJC Scopus subject areas

    • Aerospace Engineering
    • Space and Planetary Science

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