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

Michael J. Mortonson·Christophoros C. Vassiliou·David J. Ottaway·David H. Shoemaker·Gregory M. Harry
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Abstract

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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Michael J. Mortonson, Christophoros C. Vassiliou, David J. Ottaway, David H. Shoemaker, Gregory M. Harry. 2003-07-31. Effects of electrical charging on the mechanical Q of a fused silica disk. https://doi.org/10.1063/1.1619544

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