Initial results from a long-period conical pendulum vibration isolator with application for gravitational wave detection

Abstract

Initial performance measurements of a Scott–Russel pre-isolator stage with 400 Kg load capability are presented. Isolation better than 90 dB was obtained around 2 Hz. A Q-factor of ∼500 was obtained with ∼30 s resonant period setting and a longest resonant period of 153 s was obtained with Q-factor >3.