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

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

2003-07-31

arxiv.org/abs/gr-qc/0308001v1

Rev.Sci.Instrum. 74 (2003) 4840-4845

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

submitted to Review of Scientific Instruments

Scientific paper

10.1063/1.1619544

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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