Improved Torsion Pendulum for Ground Testing of LISA Displacement Sensors

Details Improved Torsion Pendulum for Ground Testing of LISA Displacement Sensors Improved Torsion Pendulum for Ground Testing of LISA Displacement Sensors

2004-11-09

arxiv.org/abs/gr-qc/0411049v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages 1 figure, to appear in the Proceedings of the 10th Marcel Grossmann Meeting on General Relativity

Scientific paper

We discuss a new torsion pendulum design for ground testing of prototype LISA (Laser Interferometer Space Antenna) displacement sensors. This new design is directly sensitive to net forces and therefore provides a more representative test of the noisy forces and parasitic stiffnesses acting on the test mass as compared to previous ground-based experiments. We also discuss a specific application to the measurement of thermal gradient effects.

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