We’ve added to our product line again. We are now offering another alternative of supporting your breadboard needs.
Using similar construction as our Conventional Non-Vibration Isolation Table stands but now with (4) Air cylinder assemblies to provide the stable surface needed for those critical experiments and measurements.
Utilizes the same type of air springs found in our independent leg systems.
Available for Light or Heavy loads
Optional Shelf
Optional Power Strip of US standard outlets
Light weight models avaialable
Optional Casters Available.
SLAS Technology
Table stand shown is 18” high version. Designed for a 36” x 36” Table Top
There are a variety of approaches to vibration isolators for optical tables. All of these come down to having to isolate in the horizontal direction and vertical direction. Piston isolators have the limitation that the isolation is only in the piston direction, normally the vertical axis. As a result, an additional method is required to provide horizontal isolation. In gimbal piston isolators, the horizontal damping element is normally a thin wall rubber membrane isolator.
Vere isolators use a rolling lobe method of isolation. This uses a thin membrane in the horizontal axis and the same thin membrane forms the vertical axis as well. This is a time proven method used for all types of vibration isolation. Vere systems use minimal damping because damping is accomplished by conducting energy from the table to the floor to stop movement. Unfortunately, it also transmits energy from the floor to the table which decreases the performance of the isolation. The real performance measure of an isolator is the resonant frequency. Most vibrations of concern are from 10 - 150 Hz with the greatest energy being around 30 & 60 Hz due to electric motor vibrations. As long as an isolator has a resonant frequency below 2 - 3 Hz, you will have acceptable isolation. Beyond that, air isolation is just the resonant frequency of the isolator combined with the weight of the table. As long as the movable elements in the legs are very thin so friction is reduced, and there are elements in the horizontal and vertical axis, there is nothing that can be done to increase performance further. Physics of an air spring and mass defines the best performance.
Light loads
"VIL" Min load 200 lbs, Max load-1600 lbs
(Load = Weight of table top + Instruments on Table Top)
Air pressure - Do not exceed 100 PSI
Resonant frequency - <2hz
Isolator natural frequency:
Vertical: 0.8 Horizontal: 1.4
Isolation efficiency@ 5Hz:
Vertical: 97% Horizontal: 90%
Isolation efficiency @ 10 Hz:
Vertical: 99% Horizontal: 97
Heavy loads
"VIH" Min load 600 lbs, Max load-4800 lbs
(Load = Weight of table top + Instruments on Table Top)
