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The Cryo Vibration Isolation Platform (CVIP) is a passive vibration isolation platform with z, Rx and Ry attenuation of floor vibrations (read our application note on Z-Transmissibility Measurements). It is placed directly on the cryostat cold plate and carries the experiment. It is a relatively stiff spring design, which results in atypical high cut-off frequencies and high payload. Although this will limit the damping of low frequencies, compared to conventional dampers with low cut-off frequencies, it is much more insensitive to added cables and thermal braids between cold plate and experiment. These can become the limiting factor for stability in conventional dampers.
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- Product configurations
|Isolated axes||-||z, Rx, Ry|
|Main dimensions||mm||ø 50 x 21.8||ø90 x 25.8||ø120 x 26.3|
|Central open aperture||mm||ø16||ø22||ø45|
|Moving mass excluding payload||kg||0.07||0.41||0.69|
|Linear stiffnes z-axis*||N/m||3.90E+04||7.80E+04||4.70E+05|
|Rotation stiffness x-axis*||Nm/rad||7.8||47.5||613|
|Rotation stiffness y-axis*||Nm/rad||7.8||47.5||613|
|Rotation axis position below platform||mm||-14.7||-18.2||-17.6|
|z, Rx, Ry cut-off frequencies @ max payload**||Hz||42, 12, 12||32, 17, 17||42, 30, 30|
|Bi-directional||-||can be used upside down (hanging)|
|Overload protection endstops||mm||+/-0.5|
|Main construction material||-||Phosphor bronze|
|** ±10%. Payload center of gravity on center axis, 35mm above platform|
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CVIP1: Cryogenic Vibration Isolation Platform 1
CVIP2: Cryogenic Vibration Isolation Platform 2
CVIP3: Cryogenic Vibration Isolation Platform 3
Passive instrument, no controller required.