Acoustic properties of a hollow sphere for gravitational wave detectors

Details Acoustic properties of a hollow sphere for gravitational wave detectors Acoustic properties of a hollow sphere for gravitational wave detectors

Jan 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cqgra..27b5014b&link_type=abstract

Classical and Quantum Gravity, Volume 27, Issue 2, pp. 025014 (2010).

Physics

1

Scientific paper

We report on experimental work on a small prototype of a hollow sphere, aiming at assessing the feasibility of such a resonator as a third generation gravitational wave resonant detector. We measured the resonant frequencies and quality factors of the spheroidal quadrupolar modes of a welded hollow sphere. The eigenfrequencies are found where predicted by the theory, and the quality factors were degraded from a minimum of 20% to a maximum of 60% with respect to the bulk sphere.

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