Experimento Mecânico para Medir a Velocidade da Gravidade

Abstract

The authors have experience with the gravitational wave detector SCHENBERG, which is a resonant mass developed by the Brazilian GRAVITON. Its spherical antenna weighs 1150 kg and is monitored by six parametric ultralow noise transducers and is connected to the external environment by a suspension system designed to attenuate local, seismic and non-seismic noise, operating at a temperature of 4 K. the recognition has acquired the idea of ​​doing an experiment to measure the speed of gravity. Using monocrystalline sapphire with very high mechanical and electrical Qs, microwave sources with ultra-low phase noise, suspensions designed by Finite Element Modeling, parametric microwave transducers, excellent noise filtering properties of resonant mass and the development of high-speed rotation machines guided the authors to design the experiment. The experiment will measure the oscillations caused by the gravitational interaction with an amplitude of the order of 0.1 am 10^-19m).