| Texto completo | |
| Autor(es): |
Frajuca, Carlos
;
Bortoli, Fabio da Silva
;
Mio, N
Número total de Autores: 3
|
| Tipo de documento: | Artigo Científico |
| Fonte: | WAKE CONFERENCE 2021; v. 32, p. 4-pg., 2006-01-01. |
| Resumo | |
"Mario Schenberg" is a spherical resonant-mass gravitational wave (GW) detector that will be part of a GW detection array of two detectors. Another one is been built in The Netherlands. Their resonant frequencies will be around 3.2 kHz with a bandwidth of about 200 Hz. This range of frequencies is new in a field where the typical frequencies lay below 1 kHz, making the transducer development much more complex. Some studies indicated that using low mass mechanical resonators (used for impedance matching to the parametric transducer, in a cold damping regime) allow the detector to reach the standard quantum limit. In this work we describe the procedures that are being developed to quickly test the mechanical quality factor of a very small resonator in the quest to find the best machining method and thermal annealing for the impedance matching resonator, one key part that makes a good coupling between the sphere and the transducer. The main goal is to optimize the mechanical quality factor in a reasonable time. (AU) | |
| Processo FAPESP: | 05/00716-0 - Improving the mechanical quality factor in the transducer impedance matchers for Mario Schenberg detector |
| Beneficiário: | Carlos Frajuca |
| Modalidade de apoio: | Auxílio à Pesquisa - Reunião - Exterior |