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.
Bassan, M., Dewaard, A., Frossati, G., Gianni`, S., Minenkov, Y., Quintieri, L., et al. (2010). Acoustic properties of a hollow sphere for gravitational wave detectors. CLASSICAL AND QUANTUM GRAVITY, 27, 025014-025026 [10.1088/0264-9381/27/2/025014].
Acoustic properties of a hollow sphere for gravitational wave detectors
BASSAN, MASSIMO;
2010-01-04
Abstract
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.| File | Dimensione | Formato | |
|---|---|---|---|
|
10CQG_HollowSphere.pdf
solo utenti autorizzati
Licenza:
Copyright dell'editore
Dimensione
860.78 kB
Formato
Adobe PDF
|
860.78 kB | Adobe PDF | Visualizza/Apri Richiedi una copia |
Questo articolo è pubblicato sotto una Licenza Licenza Creative Commons
