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physics.ins-det2021★ 10 cited
A Low-Frequency Torsion Pendulum with Interferometric Readout
M. P. Ross, K. Venkateswara, C. A. Hagedorn +6
We describe a torsion pendulum with a large mass-quadrupole moment and a resonant frequency of 2.8 mHz, whose angle is measured using a modified Michelson interferometer. The syste…
physics.ins-det2018★ 2 cited
Early Earthquake Detection with a Dual Torsion-Beam Gravimeter
D. J. McManus, P. W. F. Forsyth, N. A. Holland +4
Ground mass is redistributed during an earthquake causing the local gravitational potential to change. These gravitational fluctuations travel at the speed of light meaning they wi…