PZ-2000 XYZ Series Automated Stage with Piezo Z-Axis Top Plate

About the PZ-2000 XYZ

The PZ-2000 XY stage has been designed to provide a high resolution, and highly repeatable, means of controlling the X-, Y-, and Z-position of the microscope stage. The X- and Y-axes derive their precise control through the use of closed-loop DC servo motors employing high-resolution rotary encoders for positioning feedback. By using closed-loop control for the stage position, there is no chance that the stage will become lost, as can occur with open-loop micro-stepped stages after a number of moves and direction changes. The XY stage utilizes crossed-roller slides, high-precision lead screws, and zero-backlash miniature geared DC servo motors for smooth and accurate motion. The top plate of the stage accepts standard K-size slide inserts that are available for any sample, i.e., slides, Petri dishes, multi-well plates, etc. The slide insert is moved in the Z-axis via a piezo element with a range of 150 μm with nanometer accuracy (300 μm and 500 μm range is also available). By moving the sample along Z-axis, any objective can be used, eliminating twisting wires or needed spacers as required when a piezo element is put onto a single objective. The microprocessor-controlled MS-2000 control unit provides for RS-232 and USB communication with a host computer for control of the X-, Y-, and Z-axes.

More Info

PZ-2000 XYZ Features
  • Closed-loop control of the X-, Y-, and Z-axes for precise positioning and highly repeatable focusing.
  • Wide dynamic speed range with adjustable trapezoidal move profiles.
  • Smooth adjustable dual-range joystick control.
  • Proven operation with many popular software packages.
  • Travel range will scan full well plate in most circumstances.
ADEPT Piezo Controller Specifications
Specification PZ-2150 FT PZ-2300 FT PZ-2500 FT
Piezo travel range (± 5%) 150 μm 300 μm 500 μm
Piezo smallest move / resolution* 2.2 nm 4.5 nm 7.6 nm
Maximum load for full range travel 2 kg 1 kg 1 kg
Transient response time** 11–15 ms
External analog input (BNC) 0–10 V
Maximum input frequency 20 Hz
Maximum continuous output current 13 mA

**Time taken to travel 10%-90% for moves below 30% travel range with 600 g load.

*In external input mode, use of a higher bit DAC will increase resolution. For example a 0-10 analog voltage from the DAC results in the following:

External Analog Input Steps Resolution
16 Bit DAC 65536 2.2 nm
17 Bit DAC 131075 1.1 nm
18 Bit DAC 262144 0.55 nm