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Active vibration isolation against low-frequency ground tilt is important for detection of gravitational wave, however until now few low-frequency ground tilt detection and vibration isolation systems with high precision have been reported. We reported a kind of active vibration isolation system called as two-dimensional compound pendulum, which is constructed by connecting a cylindrical simple pendulum...
We reported a new low-frequency active vibration isolation system called by compound pendulum which is mainly composed of a pair of two-dimensional elastic reeds and two pendulums. The response to the ground horizontal and tilt vibration of the compound pendulum is investigated. The simulations show that the compound pendulum is not only sensitive to low-frequency tilt vibration but also restrains...
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