The Gimbal Piston® Air Isolator provides outstanding isolation in all directions for even the lowest input levels. It is lightly damped and highly responsive to typical, low-amplitude ambient floor vibrations, yet achieves very high damping for gross transient disturbances, such as sudden load changes or bumping the top plate. The result is that Gimbal Piston Isolators provide superior isolation yet will virtually eliminate any gross disturbance within a few seconds. It can also stabilize isolated systems with relatively high centres of gravity without compromising isolation.
- Vertical and horizontal vibration isolation starting at 2 Hz
- Reduces vibration by more than 95% at 10Hz
- Virtually free of friction, avoiding rolling friction to static friction transitions
- Accommodates horizontal displacement by acting as a gimbal
The greatest challenge in designing an effective isolator is to maintain good performance at the low vibration amplitude inputs typical of ambient building floor vibration. Isolator specifications are often based on measurements done with the isolator placed on a “shaker table” with very high amplitude input levels. Such testing, with input amplitudes on the order of millimetres, yields unrealistic performance expectations and is misleading as results will not reflect the actual performance in use.
The Gimbal Piston Isolator design is unique in its ability to maintain its stated resonant frequency and high level of attenuation in even the most quiet, real, floor environments. The performance is linear to such low amplitudes because the design is virtually free of friction and therefore able to avoid rolling friction to static friction transitions.
Every other system that we have tested at levels typical for floor vibration exhibits either a higher resonant frequency than claimed or a substantial increase in transmission through the isolator mount.
We stress the importance of performance specifications at low levels because we have repeatedly observed, in our own testing and in many as-used installations, that better performance is much easier to achieve at greater amplitudes and higher frequencies.
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Lambda Photometrics is the leading UK Distributor of Characterisation, Measurement and Analysis solutions with particular expertise in Instrumentation, Laser & Light based products, Optics, Electro-optic Testing, Spectroscopy, Machine Vision, Optical Metrology, Fibre Optics, Microscopy and Anti-vibration tables & custom solutions
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TMC CleanBench Laboratory Table
Vibration isolated lab equipment tables for a wide range of applications including scanning probe microscopy, confocal microscopy, interferometry and optical metrology.
- Unique new table-top design (patent pending) combines the best features of TMC's CleanTop steel honeycomb tops with our ultra-stiff, damped, layered platform design.
- Greater stability, especially for small size tables. The low profile, high density tops lower the overall floating center-of-mass ensuring inherently stability, even for relatively top-heavy payloads.
- Guided thread lead-ins to align screws with tapped holes. The "bevel" shape eases engagement of the first thread.
- Ergonomics optimized for the seated user by minimizing the thickness of the table-top. Other designs either offer 100 mm, 4 in. thick tops which awkwardly separate knees and elbows or sacrifice essential mass by offering a 50 mm, 2 in. thick honeycomb top which does not have adequate massfor effective vibration isolation, especially for smaller table sizes.