Mechanical loss in fibers for low noise pendulums

Joseph Kovalik, Peter R. Saulson

Research output: Contribution to journalArticle

40 Scopus citations

Abstract

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.

Original languageEnglish (US)
Pages (from-to)2942-2946
Number of pages5
JournalReview of Scientific Instruments
Volume64
Issue number10
DOIs
StatePublished - Dec 1 1993
Externally publishedYes

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ASJC Scopus subject areas

  • Instrumentation

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