Mechanical loss in fibers for low noise pendulums
作者:
Joseph Kovalik,
Peter R. Saulson,
期刊:
Review of Scientific Instruments
(AIP Available online 1993)
卷期:
Volume 64,
issue 10
页码: 2942-2946
ISSN:0034-6748
年代: 1993
DOI:10.1063/1.1144388
出版商: AIP
数据来源: AIP
摘要:
We describe measurements of the quality factors of resonances in fibers made of tungsten, silicon, sapphire, and fused quartz. The silicon and sapphire samples exhibited losses consistent with thermoelastic damping. Our fused quartz samples showed excess loss at some frequencies. The tungsten fibers had quality factors much lower than the thermoelastic prediction at all frequencies that we measured. We calculate the expected Brownian motion of pendulums made with similar fibers.
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