- Driven by Cryo Linear Actuators
- Preloaded to ensure play free actuation
- Membrane eliminates erratic lateral motion
- Materials: stainless steel, titanium
- 20 mK to 375 K, vacuum compatible
- Sub-nanometer stability
- 1/2″ or 1″ version standard
- Optics side-clamped with a spring loaded screw
- Self locking; no power dissipation when “off”
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Product description
The Cryo Tip / Tilt / Piston Stage (CTTPS) accepts 1/2″ or 1” optical elements and can be operated in a cryo-vacuum environment. It is actuated with JPE’s Cryo Linear Actuators (CLA). Play of the tip / tilt / piston functionality is eliminated by built-in preload springs. Lateral position is not achieved via traditional v-groove constructions, but by using a deformable metal membrane. This feature not only eliminates play but also the erratic motion seen in the traditional designed tip tilt piston stages. The optics are clamped from the side with a single spring loaded screw.
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| specs | unit | CTTPS1/2 | CTTPS1 |
|---|---|---|---|
| SYSTEM SPECIFICATIONS | |||
| Active axes | - | 3 | |
| Type of motion | - | Tip / Tilt / Piston | |
| Optical diameter | mm (inch) | 12.7 (1/2) | 25.4 (1) |
| Open optical aperture diameter | mm | 11.5 | 21 |
| System tip / tilt range w.r.t optics centre | deg | ± 7.2 | ± 5.6 |
| System piston range | mm | ± 1.5 | |
| Coarse actuator | - | CLA2201 | |
| Main construction material | - | Titanium, stainless steel | |
| ACTUATOR SPECIFICATIONS Specifications are given for individual actuators unless otherwise mentioned. See interface drawing for transformation matrix from actuator outputs to system motion. |
|||
| Coarse range | mm | ± 1.5 | |
| Coarse step size @ 293 K | nm | 5-25 | |
| Coarse step size @ 4 K | nm | 1-5 | |
| Operating temperature | K | 0.02-375 | |
| Mass | grams | 160 | 170 |
| Coarse actuator spindle pitch | mm/turn | 0.25 | |
| DRIVE ELECTRONICS | |||
| Controller/driver | - | CAB-230(115), CADM(2), MCM | |
HV rated positioners can realistically be considered compatible with pressures as low as 1E-8 mbar. Lower pressures can be achieved by prolonged baking of positioners in vacuum at 100-150 deg C, depending on the type of positioner. Upon request JPE can provide such service at additional costs.
CTTPS1/2 /HV: Cryo Tip/Tilt/Piston Stage 1/2”
CTTPS1 /HV: Cryo Tip/Tilt/Piston Stage 1”
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