Summary
We have instrumented a room temperature gravitational-wave antenna with a prototype bimodal capacitive transducer and a conventional FET amplifier. This transducer, realized with a steel intermediate resonator, provides mass ratios μ≈10−3 both with respect to the antenna and to the light-mass (27 g), mushroom-shaped, final resonator. We briefly report some remarks on the analysis of a three-mode system and the design characteristics of the transducer. Finally, we show that the antenna has been operated for several days exhibiting a clean spectrum of thermal noise.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
G. V. Pallottino andG. Pizzella:Nuovo Cimento C,4, 237 (1981).
G. Ya. Lavrent'ev:Sov. Phys. Tech. Phys.,14, 989 (1970); translated fromŽ. Tekh. Fiz.,39, 1316, (1969).
H. J. Paik:J. Appl. Phys.,47, 1168 (1976).
W. O. Hamilton:Proceedings of the VI Marcel Grossmann Conference on General Relativity, Kyoto 1993, edited byH. Sato andT. Nakamura (World Scientific, 1992), p. 988.
P. Astone, M. Bassan, P. Bonifazi, F. Bronzini, M. G. Castellano, E. Coccia, C. Cosmelli, V. Fafone, S. Frasca, E. Majorana, I. Modena, G. V. Pallottino, G. Pizzella, P. Rapagnani, F. Ricci andM. Visco:Europhys. Lett.,16, 231 (1991).
P. F. Michelson andR. C. Taber:Phys. Rev D,29, 2149 (1984).
P. F. Michelson, J. C. Price andR. C. Taber:Science,237, 150 (1987).
J. P. Richard:Proceedings of the II Marcel Grossmann Meeting on General Relativity, edited byR. Ruffini (North-Holland, 1992), p. 1239.
Yi Pang andJ. P. Richard:Rev. Sci. Instrum.,63, 56 (1992).
J. P. Richard:J. Appl. Phys. 60, 3807 (1986).
N. Solomonson, W. W. Johnson andW. O. Hamilton:Phys. Rev. D,46, 2299 (1992).
F. Buratti: internal report ROM 2F/92/26.
P. Rapagnani:Nuovo Cimento C,5, 385 (1982).
E. Majorana, P. Papagnani andF. Ricci:Meas. Sci. Technol.,3, 501 (1992).
Y. Ogawa andP. Rapagnani:Nuovo Cimento C,7, 21 (1984).
C. Cinquegrana, E. Majorana, P. Rapagnani andF. Ricci:Phys. Rev. D,48, 448 (1993).
J. P. Richard:Rev. Sci. Instrum.,47, 423 (1976).
N. Akasaka: PhD Thesis, Tokyo 1990 (unpublished).
R. J. Roark:Formulas for Stress and Strain (Mc Graw-Hill, New York and London, 1943);S. Timoshenko:Theory of Plates and Shells (Mc Graw-Hill, Singapore, 1989).
L. D. Landau andE. M. Lifshits:Theorie de l'elasticitè (MIR, Moscow, 1967).
E. Coccia:Rev. Sci. Instrum.,53, 148, (1982).
J. W. S. Rayleigh:The Theory of Sound (Dover Publications, New York, N.Y., 1945);E. Coccia:Rev. Sci. Instrum.,55, 1980 (1984).
M. Bassan, E. Coccia, I. Modena, S. Frasca, G. V. Pallottino, G. Pizzella, P. Rapagnani andF. Ricci:Società Italiana di Fisica, LXXV Congresso Nazionale, Cagliari 1989 (Tipografia Compositori, Bologna, 1989) p. 126.
G. V. Pallottino andT. Lupi:Rev. Sci. Instrum.,61, 2436 (1990).
S. Frasca andM. Gabellieri:Rev. Sci. Instrum.,60, 198 (1989).
S. Turolla: Thesis, University of Rome Tor Vergata (unpublished).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Bassan, M., Buratti, F. & Modena, I. Observation of thermal noise in a three-mode resonant gravitational-wave antenna. Nuov Cim B 109, 897–910 (1994). https://doi.org/10.1007/BF02722467
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/BF02722467