Optimization of high sensitivity parametric transducers for the Gravitational Wave Detector "Mario Schenberg"

V. Liccardo; E. C. Ferreira; O. D. Aguiar; R. M. Oliveira

doi:10.1117/12.2235867

22 July 2016 Optimization of high sensitivity parametric transducers for the Gravitational Wave Detector "Mario Schenberg"

V. Liccardo, E. C. Ferreira, O. D. Aguiar, R. M. Oliveira

Author Affiliations +

Proceedings Volume 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II; 991278 (2016) https://doi.org/10.1117/12.2235867
Event: SPIE Astronomical Telescopes + Instrumentation, 2016, Edinburgh, United Kingdom

Abstract

Parametric transducers may be used to monitor vibrational modes of resonant-mass Gravitational Wave (GW) detectors. This work focuses on the development and optimization of electromechanical transducers for the Brazilian GW detector "Mario Schenberg". We present the design and preliminary results for the optimization process of the last generation of the Schenberg parametric transduction system. Thanks to the results obtained from the last run of tests improvements for the transduction system will be planned and performed, in order to make the detector suitable for the searching of GW signals. The aim would be to obtain information about the direction and polarization of waves produced by astrophysical sources in the frequency bands of the spherical detector resonant modes.

Citation Download Citation

V. Liccardo, E. C. Ferreira, O. D. Aguiar, and R. M. Oliveira "Optimization of high sensitivity parametric transducers for the Gravitational Wave Detector "Mario Schenberg"", Proc. SPIE 9912, Advances in Optical and Mechanical Technologies for Telescopes and Instrumentation II, 991278 (22 July 2016); https://doi.org/10.1117/12.2235867

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