We report the eigenfrequencies and quality factors of vibration of the lowest quadrupole modes of Al 5056 spherical resonators at very low temperatures. Q values of spheroidal modes ranging from 3 × 106 to 2 × 107 in a bulk sample and from 1.7 × 106 to 8 × 106 in an explosively bonded sample were measured. A Q value of 1.2 × 108 was found in a higher order mode of the bulk sample. Independence of the quadrupole modes was measured within one part in 105 in amplitude.

Coccia, E., Fafone, V., Frossati, G., Haar, E., Meisel, M. (1996). Eigenfrequencies and quality factors of vibration of aluminium alloy spherical resonators. PHYSICS LETTERS A, 219(5-6), 263-270 [10.1016/0375-9601(96)00452-5].

Eigenfrequencies and quality factors of vibration of aluminium alloy spherical resonators

COCCIA, EUGENIO;FAFONE, VIVIANA;
1996-01-01

Abstract

We report the eigenfrequencies and quality factors of vibration of the lowest quadrupole modes of Al 5056 spherical resonators at very low temperatures. Q values of spheroidal modes ranging from 3 × 106 to 2 × 107 in a bulk sample and from 1.7 × 106 to 8 × 106 in an explosively bonded sample were measured. A Q value of 1.2 × 108 was found in a higher order mode of the bulk sample. Independence of the quadrupole modes was measured within one part in 105 in amplitude.
1996
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01 - FISICA SPERIMENTALE
Settore FIS/05 - ASTRONOMIA E ASTROFISICA
English
Gravitational wave detectors; Mechanical resonances
Coccia, E., Fafone, V., Frossati, G., Haar, E., Meisel, M. (1996). Eigenfrequencies and quality factors of vibration of aluminium alloy spherical resonators. PHYSICS LETTERS A, 219(5-6), 263-270 [10.1016/0375-9601(96)00452-5].
Coccia, E; Fafone, V; Frossati, G; Haar, E; Meisel, M
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/101689
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