Computer Science – Performance
Scientific paper
Oct 2010
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010cqgra..27t5016t&link_type=abstract
Classical and Quantum Gravity, Volume 27, Issue 20, pp. 205016 (2010).
Computer Science
Performance
1
Scientific paper
A novel two-stage electrostatically controlled torsion pendulum has been developed to simultaneously investigate the performance of a translational and a rotational degree of freedom of an electrostatic inertial sensor on ground. The motions of the proof mass (PM) relative to the electrode frame are monitored by a high-precision capacitance transducer, and are synchronously controlled by electrostatic actuators. The parasitic stiffness induced by capacitance transducers and the effect of the magnetic field are measured. Both translational and rotational motions of the PM succeed to be simultaneously controlled, and the cross-coupling effect between both controlled degrees of freedom is also preliminary measured. The experiments show that the scheme obviously suppresses the translational to rotational effect of the PM, and then effectively improves the torque resolution compared with the single-stage torsion pendulum. The noise floors of the controlled torsion pendulum come to 1.2 × 10-11 N Hz-1/2 along the translational degree of freedom, and 1.4 × 10-13 N m Hz-1/2 along the rotational degree of freedom, near 30 mHz, which are mainly limited by the back action of the capacitance transducer below 0.1 Hz and by the horizontal seismic noise disturbance above 0.1 Hz.
Bai Yan-Zheng
Cai Liang
Liu Lin
Luo Jianfeng
Tu Hai-Bo
No associations
LandOfFree
Performance measurements of an inertial sensor with a two-stage controlled torsion pendulum does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Performance measurements of an inertial sensor with a two-stage controlled torsion pendulum, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Performance measurements of an inertial sensor with a two-stage controlled torsion pendulum will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1121021