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

作为低噪声测试平台的扭力天平的光学控制（B06）

• 批准号: 456877134
• 金额: --
• 依托单位: Institut für Gravitationsphysik
• 依托单位国家: 德国
• 项目类别: Collaborative Research Centres
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/456877134?language=en
• 关键词: Optical; Control; Torsion; Balance; Low

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.

与重力有关的卫星飞行任务的基本原理是感测自由浮动试验质量的纯重力驱动运动。必须小心保护这些试验质量，使其免受所有非重力的影响。在地面上测量这种微小力的首选实验方法是扭力天平。在该项目中，我们的目标是建立激光干涉测量作为主要的读出技术，以克服扭转平衡的局限性。其主要目标是将扭力天平作为一种可靠、高精度的测试平台，用于测量非常小的力和加速度。