3D/4D Positioniersystem
ASI’s compact 3D/4D stage is a precise motorized motion control system designed to move samples around fixed optics. Es enthält drei lineare ASI-Tische und einen optionalen motorisierten Drehtisch für eine Theta-Achse. The linear stages comprising the XYZ elements offer travel options of 25, 50, 100, or 200 mm and each axis can be chosen separately. The linear stages derive smooth and accurate motion from closed-loop DC servomotors, crossed-roller bearings, high-precision lead screws, and high-resolution encoders for positioning feedback. Wie andere ASI Systeme auch, können sich diese gleichmäßig mit extrem langsamen Geschwindigkeiten bewegen. Alle Systeme bieten verschiedene Geschwindigkeits- / Genauigkeitsoptionen für ein maßgeschneidertes 3D / 4D-System. Alle Elemente sind starr miteinander verbunden und üblicherweise über eine Adapterplatte an einem Breadboard befestigt.
ASI offers a variety of controllers that are compatible with this stage, including the MS-2000 and the modular Tiger controller. All provide automatic backlash correction, and can communicate with a host computer by RS-232 or USB connection.
D/4D Stage Lead Screw Options
| Lead Screw Pitch Options | Rotary Encoder Resolution | Maximum Speed |
| 25.40 mm (Ultra-coarse) | 88 nm | 28 mm/sec |
| 12.70 mm (Super-coarse) | 44 nm | 14 mm/sec |
| 6.35 mm (Standard) | 22 nm | 7 mm/sec |
| 1.59 mm (Fine) | 5.5 nm | 1.75 mm/sec |
| 0.635 mm (Extra-fine) | 2.2 nm | 0.7 mm/sec |
*Shown with rotary encoder and 6.35 mm pitch lead screw
3D/4D Stage Specifications
| Specifications | Dimensions |
| Encoder Resolution* | 5.5 nm |
| With Linear Encoder | 10 nm |
| RMS Repeatablilty (Typical)* | <0.7 μm |
| With Linear Encoder (Typical) | 200 nm |
| Leadscrew Accuracy | 0.25 μm/mm |
| With Linear Encoder | ± 3 μm/length scale |
| Maximum Velocity* | 1.75 mm/sec |
| Range of Travel* | 25 mm (1”) to 100 mm(4″) |
* With 1.59 mm pitch (16 TPI) Leadscrew
