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A study on the external-noise input in weber-type gravitational-wave antennas

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Il Nuovo Cimento C

Summary

A very delicate problem in gravitational-wave experiments is that of insulation of the antenna from external, acoustic or seismic, disturbances. The mechanism of excitation in terms of time variable stresses exerted by the suspension on the lateral surface of the antenna itself has been studied and results useful for design purposes obtained. Measurements performed with a small model antenna are in agreement with calculations.

Riassunto

Negli esperimenti sulle onde gravitazionali l'isolamento dell'antenna dai disturbi esterni, acustici e sismici, costituisce un problema molto delicato. Si è studiato il meccanismo di eccitazione dell'antenna in termini degli sforzi variabili esercitati sulla sua superficie laterale dalla sospensione ottenendo risultati utili per la progettazione. Tali risultati sono in accordo con le misure eseguite su un'antenna di prova.

Реэюме

Самая чувствительная проблема в экспериментах с гравитационными волнами состоит в изоляции антенны от внешних, акустических или сейсмических возмушений. Исследуется механизм возбуждения в терминах изменяемых во времени напряжений, обусловленных подвесной системой, на боковой поверхности антенны. Полученные результаты оказываются полезными при конструировании. Измерения, проведенные с малой модельной антенной, согласуются с вычислениями.

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References

  1. See,e.g.,H. Kolsky:Stress Waves in Solids (New York, N. Y., 1963).

  2. M. K. Fufimoto: private communication.

  3. J. P. Richard:Rev. Sci. Instrum.,47, 423 (1976).

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Fuligni, F., Ricci, F. A study on the external-noise input in weber-type gravitational-wave antennas. Il Nuovo Cimento C 4, 93–102 (1981). https://doi.org/10.1007/BF02507748

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  • DOI: https://doi.org/10.1007/BF02507748

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