测量重力速度的机械实验

G. S. Ferreira, Carlos Frajuca, F. Bortoli
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引用次数: 1

摘要

作者有使用引力波探测器SCHENBERG的经验,这是一个由巴西引力子开发的共振质量。它的球形天线重达1150公斤,由6个参数超低噪声传感器监测,并通过一个悬挂系统连接到外部环境,该悬挂系统旨在衰减局部、地震和非地震噪声,工作温度为4 k。采用具有极高机电Qs的单晶蓝宝石、超低相位噪声的微波源、采用有限元建模设计的悬架、参数化微波换能器、谐振质量优异的噪声滤波性能以及高速旋转机械的发展,指导了作者的实验设计。该实验将测量由引力相互作用引起的振幅为0.1 am (10^-19m)的振荡。
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Experimento Mecânico para Medir a Velocidade da Gravidade
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).
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