XYZ Gantry Scanning System

Gantry Translation Stages der GTS-Serie bieten drei präzise DC-Servomotor-Linearantriebe mit geschlossenem Regelkreis, die in einer Reihe von Verfahrwegen erhältlich sind. Die abgebildete 15-Zoll-Standardeinheit ermöglicht einen Hub von 380 mm in den X- und Y-Koordinaten und einen Hub von 100 mm in der Z-Achse, wobei kleinere und größere Hubbereiche verfügbar sind. An optional fourth axis controls the zooming video microscope, shown, available with zoom ranges as high as 16X.

The units utilize precision bearing guide assemblies to provide smooth and accurate movement. The entire stage assembly is precisely machined to demanding tolerances to provide a standard XY resolution of less than 3 microns, with typical bi-directional repeatability better than 5 microns. The X and Y axes have a maximum travel speed of 100 mm (4”) per second in the standard configuration, with other speed options available.

GTS Features
  • Closed-loop DC servo control of the X, Y, and Z axes for precise positioning
  • Wide dynamic speed range with adjustable trapezoidal move profiles
  • Electronic torque limit on drives for “built-in” limit protection
  • Hall-effect limit sensors on X, Y, and Z axes
  • Micron-scale repeatability on all axes
  • Smooth adjustable dual-range joystick control
  • Backlit LCD display shows X, Y, and Z coordinates
  • “Zero” and “Home” button for simple stand-alone operations
  • Compact ergonomic tabletop control unit size is 9 x 23 x 16½ cm (3½ x 9 x 6½ inches)
  • Microprocessor control with RS-232 serial and USB communications
  • Other functions including programmable positioning patterns and scans
GTS Lead Screw Options
Lead Screw Pitch Options Rotary Encoder Resolution Maximum Speed (Dynamic range = 400)
XY Z XY Z
25.40 mm (Ultra-coarse) N/A 88 nm N/A 28 mm/sec
12.70 mm (Super-coarse) 1680 nm 44 nm 200 mm/sec 14 mm/sec
6.35 mm (Standard) 840 nm 22 nm 100 mm/sec 7 mm/sec
1.59 mm (Fine) 210 nm 5.5 nm 25 mm/sec 1.75 mm/sec

*Shown with standard 6.35 mm pitch lead screws

The Z axis has a standard resolution of less than 0.1 microns, with typical bi-directional repeatability better than 1 micron. The Z axis has a maximum travel speed of 7 mm (1/4”) per second in the standard configuration, with other speed options available.

Linear encoder options are available on all axes to provide resolutions down to 10 nm, with typical repeatability better than 500 nm, and scale accuracy of ± 3 µm per length of scale.

The GTS can be custom configured with cameras and video microscopes with automated focusing and motorized zoom. A wide array of lighting options are available as well, including coaxial illuminators, ring lights, and the LED light box, shown, with variable intensity and uniform light distribution.

The large number of options available allows the unit to be easily configured for a wide variety of image acquisition, inspection, and 3D positioning and profiling applications.

GTS Specifications
XY axis range of travel 380 mm x 380 mm (15” x 15”)
XY axis resolution < 3 µm
XY axis RMS repeatability < 5 µm
XY axis maximum velocity 100 mm/sec
Z axis range of travel (typical) 100 mm (4”)
Z axis resolution (encoder step) 22 nm
Z axis RMS repeatability (typical) < 700 nm
Z axis maximum velocity 7 mm/sec

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