Opto-Mechanics · Cryogenic Piezo Stages - Linear positioners
Linear25-x
General-purpose cryogenic X linear stage; 25 x 25 x 9.5 mm body; 6 mm coarse travel; 500 g payload; optional resistive closed-loop encoder around 150 nm resolution.
Datasheet (PDF) ↗CAD Model (STEP) ↗Specifications
| Active axes | X |
|---|---|
| Footprint × hight | 25.4x25.4x9.5 mm |
| Mass | 24 g |
| Work environment | 1.4~ 400 K, Max. Magnetic field: 35 Tesla |
| Mainbody | Pure Ti |
| Wires | Phosphor Bronze Twisted Paired Wires, 20cm |
| Pin materials | Polyster (glass fiber filled), BeCu |
| Pins number | Drive -2 pins, Sensor- 3 pins |
| Fine Tune Resolution @2 K* | sub nm |
| Step Size (min) @300 K* | ~10 nm |
| Travel range | 6 mm |
| Max. Velocity @300 K | ~3 mm/s |
| Max. Load | 500 g |
| Dynamic force | 2 N |
| Position encoder | Resistive Sensor |
| Encoder range | 6 mm |
| Sensor resolution | ~150 nm |
| Repeatibility | 1-2 um |
Toepassingen
Monsterpositionering in cryostaten
Beweeg een monster onder een vaste optische toegangspoort bij temperaturen tot in het millikelvinbereik.
Grofbenadering voor probemicroscopie
Breng een tip van millimeters afstand binnen tunnel- of contactbereik voordat de fijnscan het overneemt.
Focusinstelling bij lage temperatuur
Stel de werkafstand in na afkoeling, wanneer thermische krimp alles heeft verplaatst.
Specifying this part
What this model has to survive, and what it needs around it
Travel survives cooldown
Coarse travel on these stages is mechanical rather than piezo expansion, so the full 3–20 mm stroke is still available at base temperature. That is the reason a coarse stage is normally stacked under a fine scanner instead of using one actuator for both.
Feedback option
Resistive encoders read to roughly 150 nm — enough to return to a feature between runs, not to hold one against drift for hours. For that case the capacitive Ultra scanners close the loop at 0.5 nm.
Heat load at the cold plate
Stick-slip inertial drives dissipate energy per step and draw no holding current once stopped, so the steady-state load on the mixing chamber is the wiring loom rather than the motor. Anchor the loom at each temperature stage and thermalise the moving body with an FTC copper braid.
Non-magnetic construction
Titanium bodies and BeCu fasteners throughout, rated for operation to 35 T and down to 30 mK with the .ULT option, at 2 × 10⁻¹¹ mbar with .UHV. A single steel screw substituted at installation is enough to compromise a high-field assembly.
Full series comparison, controller pairing and mounting hardware on the cryogenic piezo stages overview, or work through the selection with the configurator.
Related products
Linear16-x
Compact cryogenic X linear stage; 16 x 16 x 10.5 mm body; 3 mm coarse travel; 50 g payload; pure titanium construction; optional resistive closed-loop encoder around 150 nm resolution.
Linear16-z
Compact cryogenic Z elevation stage; 16 x 16 x 10.5 mm body; 3 mm coarse travel; 250 g payload; spring-counterbalanced Z mechanics; optional resistive closed-loop encoder around 150 nm resolution.
Linear25-z
General-purpose cryogenic Z elevation stage; 25 x 25 x 9.5 mm body; 6 mm coarse travel; 300 g payload; optional resistive closed-loop encoder around 150 nm resolution.
Linear25-z.LR
Long-range cryogenic Z elevation stage in the Linear25 profile; 25 mm class body; extended Z travel configuration; compatible with resistive closed-loop feedback.
