Seismic Noise Suppression for Ground-Based Investigation of an Inertial Sensor by Suspending the Electrode Cage
TAN Ding-Yin, YIN Hang, ZHOU Ze-Bing**
MoE Key Laboratory of Fundamental Physical Quantities Measurement and School of Physics, Huazhong University of Science and Technology, Wuhan 430074
Abstract ：Performance test of a high precise accelerometer or an inertial sensor on the ground is inevitably limited by the seismic noise. A torsion pendulum has been used to investigate the performances of an electrostatic accelerometer, where the test mass is suspended by a fiber to compensate for its weight, and this scheme demonstrates an advantage, compared with the high-voltage levitation scheme, in which the effect of the seismic noise can be suppressed for a few orders of magnitude in low frequencies. In this work, the capacitive electrode cage is proposed to be suspended by another pendulum, and theoretical analysis shows that the effects of the seismic noise can be further suppressed for more than one order by suspending the electrode cage.
收稿日期: 2015-04-28
出版日期: 2015-10-02
:
04.80.Nn
(Gravitational wave detectors and experiments)
04.80.-y
(Experimental studies of gravity)
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2015, Vol. 32 
