A passive isolation system normally has its natural frequency from 1.5 to 10 Hz in which vibrations with the low forced frequency coincides with the natural frequency, amplifying incoming vibrations rather than reducing them.
Our VAIS series overcome this weakness by lowering the natural frequency of the system down to the sub-hertz range. Therefore, the VAIS series is incredibly effective at controlling 1 – 5 Hz where vibration-sensitive tools tend to be unstable and disruptive and cannot yield optimal results. The VAIS series starts to reduce vibrations from 0.5 Hz, delivering 80 – 90% at 2 Hz.
As this Transmissability graph shows, the active system excels in controlling vibrations in 1-10 Hz range, where the passive systems amplify the low frequency vibrations rather than filtering them. The VAIS systems are highly effective in isolating ultra-precise microscopes and instruments from these low frequency vibrations where the precision instruments tend to be unstable and disrupted.