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Effects of electrical charging on the mechanical Q of a fused silica disk

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 نشر من قبل Gregory M. Harry
 تاريخ النشر 2003
  مجال البحث فيزياء
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We report on the effects of an electrical charge on mechanical loss of a fused silica disk. A degradation of Q was seen that correlated with charge on the surface of the sample. We examine a number of models for charge damping, including eddy current damping and loss due to polarization. We conclude that rubbing friction between the sample and a piece of dust attracted by the charged sample is the most likely explanation for the observed loss.



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