Optical Control of a Torsion Balance as a Low-Noise Test Platform (B06)

与重力相关的卫星任务的基本原理是感应自由漂浮的试验质量纯粹由重力驱动的运动。必须小心地保护这些测试质量不受所有非引力的影响。测量地面上这种微小作用力的首选实验方法是扭转天平。在该项目中，我们的目标是建立激光干涉测量法作为主要的读出技术，以克服扭力天平的限制。其主要目标是建立一个可靠的、高精度的扭力天平试验台，用于测量非常小的力和加速度。

The underlying principle of gravity-related satellite missions is sensing the purely gravity driven motion of freely floating test masses. These test masses must be carefully protected from all non-gravitational forces. The preferred experimental approach to measure such tiny forces on ground are torsion balances. Within the project, we aim to establish laser-interferometry as the primary readout technique in order to overcome limitations of torsion balances. The main goal is to establish the torsion balance as a reliable, high-precision test bed for the measurement of very small forces and accelerations.