How to Combine Motorized Stages, Piezo Stages and Sample Holders

When selecting a precision positioning stage, microscope users are often faced with the challenge of combining seemingly contradictory requirements. On the one hand, large positioning areas need to be covered at high speeds, and on the other hand, many microscopy techniques require long-term stability and positioning accuracy in the nanometer range. A proven method to meet both requirements is to combine a motorized XY stage with a piezo nanopositioning stage. To facilitate integration into microscopes from different manufacturers, PI has developed a product portfolio that includes a wide range of sample holders. The new Microscope Stage Configurator system overview describes the combination of individual subsystems.
PI offers two basic motorized long-travel XY stage designs and a manual XY stage. Both the U-780 XY stage (up to 135 x 95 mm) and the U-760 This drive technology provides an extremely large vibration-free dynamic range from micrometers/second to 100 mm/second. At idle, the motor self-clamps, providing excellent stability during long shooting sessions. The
U-780 stage can be used with Nikon Eclipse Ti/Ti2, Leica DMI6000/DMI8 microscopes, and Olympus' IX, IX2, and IX3 microscopes (here his 100x75mm travel).
The small U-760 stage (25 x 25 mm travel) is compatible with the above Nikon and Olympus inverted microscopes. Both stages (U-780 and U-760) come with a corresponding controller (C-867.2U2) and USB joystick.


The M-545 manual XY stage provides 1 micron resolution with an integrated micrometer screw. When combined with a piezo-bending nanopositioning/scanning stage, it can perform XY/Z or Z translation with nanometer resolution and 200 μm translation range.
At just 30 mm (1.2 inches), it is compatible with a wide range of inverted microscopes from leading manufacturers.
| Product / Specifications | U-780 | U-760 | M-545 |
|---|---|---|---|
| Travel range | 135 x 85 mm (DNS and DLS types) 100 x 75 mm (DOS type) | 25 × 25 mm | 25 × 25 mm |
| Velocity | To 120 mm/s | To 100 mm/s | ---- |
| Accuracy | ± 250 nm (bidirectional repeatability) | ±0.5 µm | ---- |
| Encoder Resolution | 100 nm | 10nm | ---- |
| Drive technology | PILine® ultrasonic motor | PILine® ultrasonic motor | Manual, with micrometer screws |
| Compatibility to microscopes | Olympus IX, IX2, IX3 (U-780.DOS type) Leica DMI6000, DMI8 (U-780.DLS type) Nikon Eclipse Ti, Ti2 (U-780.DNS type) Other stands (other manufacturers) on request | Nikon Eclipse Ti, Ti2 Olympus IX, IX2, IX3 Other stands (other manufacturers) on request | Nikon Eclipse Ti, Ti2 (M-545.MN type) Olympus IX, IX2, IX3 (M-545.MO type) Leica DMI6000, DMI8 (M-545.ML type) Zeiss Axio Observer (M-545.MZ type) |
Both the U-780 and U-760 motorized XY stages have submicron resolution. Although this is sufficient for most research projects based on confocal microscopy, various techniques of high-resolution microscopy (“super-resolution”) require precision well beyond 100 nanometers.
PI offers a variety of piezo nanopositioning/scanning stages that can be integrated into motorized XY stages. For example, the P-545P Inano® or P-541 piezo nanopositioner is available in various configurations that enable her XY and XYZ movements with nanometer and subnanometer resolution.

