Phys. Rev. Lett. 91, 151101 (2003) [4 pages]Achieving Geodetic Motion for LISA Test Masses: Ground Testing ResultsSee Also: Publisher's Note
The low-frequency resolution of space-based gravitational wave observatories such as LISA (Laser Interferometry Space Antenna) hinges on the orbital purity of a free-falling reference test mass inside a satellite shield. We present here a torsion pendulum study of the forces that will disturb an orbiting test mass inside a LISA capacitive position sensor. The pendulum, with a measured torque noise floor below 10 fN m/√Hz from 0.6 to 10 mHz, has allowed placement of an upper limit on sensor force noise contributions, measurement of the sensor electrostatic stiffness at the 5% level, and detection and compensation of stray dc electrostatic biases at the millivolt level. © 2003 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.91.151101
DOI:
10.1103/PhysRevLett.91.151101
PACS:
04.80.Nn, 07.87.+v, 95.55.Ym
See AlsoPublisher's Note: L. Carbone, A. Cavalleri, R. Dolesi, C. D. Hoyle, M. Hueller, S. Vitale, and W. J. Weber, Publisher’s Note: Achieving Geodetic Motion for LISA Test Masses: Ground Testing Results [Phys. Rev. Lett. 91, 151101 (2003)], Phys. Rev. Lett. 91, 179903 (2003). |
|
About | Terms and Conditions | Subscriptions | Search | Help
Use of the American Physical Society websites and journals implies that the user has read and agrees to our Terms and Conditions and any applicable Subscription Agreement. Physical Review®, Physical Review Letters®, Reviews of Modern Physics®, and Physical Review Special Topics® are trademarks of the American Physical Society.