The PZU-2000 XYZ stage has been specifically designed to provide a high resolution, and highly repeatable, means of controlling the X, Y, and Z position of the microscope stage. The XY axes derive their precise control through the use of closed-loop DC servomotors 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 servomotors 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, petrie 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 & 500 μm range is also available). By moving the sample in the Z-plane, 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 XYZ axis.
|XY axis range of travel||120 mm x 110 mm|
|XY axis resolution (encoder step)||0.088 μm|
|XY axis lead screw accuracy||0.25 μ/mm|
|XY axis RMS repeatability||< 0.7 μm|
|XY axis maximum velocity||7 mm/sec|
|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||2Kg||1Kg||1Kg|
|Transient Response time**||11 – 15 ms|
|External Analog input (BNC)||0 to 10 Volts|
|Maximum Input Frequency||20 Hz|
**Time taken to travel 10%-90% for moves below 30% travel range with 600 grams 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|
Leica – Aristoplan, DM4000, DM4500, DM5000, DM6000, DMLB, DMRB, DMRP, DMRXP
Nikon – Eclipse 80i, Eclipse 90i, Eclipse 800, Eclipse 1000
Olympus – AX70, BX41, BX50, BX51, BX60, BX61
Zeiss – AxioImager, Axiolab, Axioplan, Axioplan II, Axiophot I, Axiophot II, Axioskop, Axioskop II, Axioskop FS II
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