A Test of the Inverse Square Law of Gravitation

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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.