4-MASS TORSION PENDULUM FOR GROUND TESTING OF LISA DISPLACEMENT SENSORS
L. Carbone, R. Dolesi, C. D. Hoyle, M. Hueller, Stefano Vitale, W. J. WEBER, Antonella Cavalleri · 2006
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.