Highly Accurate Position Measuring with Incremental Linear Encoder When even higher resolution and step-and-settle response in the millisecond range is required, piezoelectric nanopositioning Z stages are recommended.Įquipped with Crossed Roller Guides for Higher PerformanceĬrossed roller guides provide lower friction, higher stiffness, load capacity and higher overall precision compared to ball bearings. PI also manufactures a compact, high-speed Z-stage with voice-coil linear motors and user-adjustable magnetic counterbalance for fast focusing and surface metrology applications.
For example, direct-drive, frictionless air bearing linear stages with integrated counterbalance can provide even higher precision than the UPL-120 stage over significantly longer travel ranges, and with higher velocities. PI also offers a selection of standard and custom elevator stages for long travel ranges. Other Elevation Stage Options – Longer Travel / Higher Resolution UPL-120 vertical positioning stages can be combined with motorized long-travel linear stages and integrated motorized XY tables to form multi-axis precision motion systems. See motion and positioning controller recommendations in the technical specifications table for more information on matching control electronics from PI.
Add encoder to ultra fractal drivers#
PI provides drivers and software for commissioning and easy operation as well as program examples in popular programming languages.
Add encoder to ultra fractal series#
For open-loop position control, a lower cost stepper motor Z-stage variant is also available.Ī selection of single-axis and multi-axis, high-performance motion controllers are available to operate the UPL-120 series of Z-stages. The highest performance variant of the UPL-120 vertical linear translation stage features 5 nanometer encoder resolution.
Direct-measuring linear encoders (or rotary encoders on the lower cost variants) provide high resolution position feedback for closed-loop operation with a motion controller. The precision bearings enhance platform stability and stiffness while integrated optical limit switches protect the mechanics against over travel conditions. The vertical stage platform is guided by precision cross-roller bearings and driven by a high-resolution, low friction ball screw through stepper motors or servo motors. High Resolution Linear Motion with Closed-Loop Servo Motors or Stepper Motors The vertical stage platform design provides excellent straightness and flatness, with better pitch and yaw performance compared to vertically mounted linear positioning stages, where the cantilevered load can cause deflections in the supporting linear bearings. Unlike vertically mounted linear stages, the high-stiffness platform concept allows for a much lower profile with 360-degree access to its payload while avoiding moment loads that can affect bearing performance and/or straightness of motion.Įlevation Stage with Excellent Straightness and Flatness of Motion The UPL-120 vertical translation stage platform provides high precision Z-axis motion with sub-micron resolution, for loads up to 20 kg. Here is a FrameRobertJuliaBulb sliced through the middle using the "Reversed" Triplex algebra.Low Profile, High Precision Vertical Translation Stage Platform Another one of my favorite formulas dating from Fractint days is the FrameRobert fractal.
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