Low frequency inertial control strategy for seismic attenuation with passive monolithic mechanical sensors

In this paper we present experimental results on the control of seismic attenuators and inertial platforms with horizontal monolithic sensors based on the classical folded pendulum architecture (Watt's linkage), taking ad- vantage of some of its peculiar characteristics like compactness and robustness coupled to resonance frequency tunability and high sensitivity over a large measurement band. We show that the main resonant frequencies of the inertial platform used for the tests, located in the frequency band 0.01 ± 10Hz, can be controlled with horizontal monolithic folded pendulums configured as seismometers (inertial sensors), presenting and discussing the control approach and the results.