AbstractA 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 ∼6km/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 ∼6km/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.


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    Title :

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


    Contributors:
    Takechi, S. (author) / Nogami, K. (author) / Miyachi, T. (author) / Fujii, M. (author) / Hasebe, N. (author) / Iwai, T. (author) / Sasaki, S. (author) / Ohashi, H. (author) / Shibata, H. (author) / Grün, E. (author)

    Published in:

    Advances in Space Research ; 43 , 6 ; 905-909


    Publication date :

    2008-12-12


    Size :

    5 pages




    Type of media :

    Article (Journal)


    Type of material :

    Electronic Resource


    Language :

    English