Observation of spurious forces (A06)

在Geo-Q的第一个供资阶段内，已经开始开发灵敏的扭转天平。我们的目标是在一个水平自由度中创造一个在10-13-10-14 ms-2/√赫兹水平上没有杂散力的环境。这一环境将使开发测试质量传感系统和在该级别进行相应的性能测试成为可能。我们的扭转天平将包括通过激光干涉读出方案和新型光学机械加速度传感器来感测摆的运动和实验平台，以提高灵敏度和减少反作用力。

Within the first funding phase of geo-Q, the development of a sensitive torsion balance has been initiated. Our aim is to create an environment that is free of spurious forces at the 10-13-10-14 ms-2/√Hz level in one horizontal degrees of freedom. This environment will enable the development of test mass sensing systems and respective performance testing at that level. Our torsion balance will include sensing of the pendulum motion and the experimental platform via laser interferometric readout schemes and novel opto-mechanical acceleration sensors for increased sensitivity and reduced back-action.