A Test of the Inverse Square Law of Gravitation

万有引力平方反比定律的检验

• 批准号: 1843735
• 金额: --
• 依托单位: University of Birmingham
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1843735
• 关键词: Test; Inverse; Square; Law; Gravitation

This project consists of developing an instrument that is capable of measuring the force of gravity between objects with separations of the order of 10 micrometres. We are developing a superconducting torsion balance in order to do this. The work involves the development of a capacitive sensor that can operate at cryogenic temperatures and be insensitive to stray-capacitance, while still offering a good SNR. We have also worked on modelling the magnetic forces involved in the instrument.

该项目包括开发一种仪器，能够测量间隔为 10 微米的物体之间的重力。为此，我们正在开发超导扭力天平。这项工作涉及开发一种电容式传感器，该传感器可以在低温下工作，对杂散电容不敏感，同时仍然提供良好的信噪比。我们还致力于对仪器中涉及的磁力进行建模。

项目成果

An air suspension to demonstrate the properties of torsion balances with fibers of zero length.

空气悬架，用于展示零长度纤维扭转平衡的特性。

• DOI: 10.1063/1.5142373
• 发表时间: 2020
• 期刊: The Review of scientific instruments
• 作者: Gettings C