Australian Research Council Centre of Excellence for Gravitational Wave Discovery [CE170100004]; Australian Research Council Center of Excellence for Gravitational Wave Discovery
机构署名：
本校为第一机构
院系归属：
电气与电子工程学院
摘要：
Seismic isolation is crucial for gravitational wave detectors as it minimizes ground vibrations, enabling the detection of faint gravitational wave signals. An active seismic isolation platform for precision measurement experiments is described. The table features piezo actuation along five degrees of freedom: three translation and two tip-tilt degrees of freedom. It is stiff in rotation about the vertical axes. A seismometer is used to sense table motion. Piezo actuators are used to suppress seismic noise with feedback control bandwidth of 0.3-3 Hz. Suppression levels ranging from 21 to 36 dB...
