The PZMU-2000 is a precise piezo Z-axis stage that can be attached to the top of a microscope’s existing XY stage or be used in stand-alone applications. On select models of microscopes, ASI can mount a PZMU-2000 to an OEM stage. We can procure a manual OEM stage for you if necessary.
The PZMU-2000 consists of ASI’s proven piezo-Z top plate mounted within a stand-alone housing. This system can be mounted to any horizontal surface, including on top of a manual XY stage of an upright microscope.
The optional MS1-PZM Controller compliments the ASI PZMU-2000, providing an LCD readout of position, an external focusing knob, RS-232 serial control, home and zeroing controls all in a small 6 x 4 inch (152 x 102 mm) footprint.
The PZMU-2000 has been specifically designed to provide a high resolution, and highly repeatable, means of controlling the Z position of a manual microscope stage. The XY axes would remain manually controlled by the original OEM stage controls. The PZMU-2000 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 100 μm and with nanometer accuracy (200 μm and 500 μm ranges are 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 piezo stage can be controlled remotely with a 0-10 volt D.C. analog input voltage, or optionally, with a PZM-2000 Controller.
|(XY axis range of travel)||(Standard OEM Stage)|
|Z axis range of travel (± 5%)||100 μm (200 μm and 500 μm versions optional)|
|Z axis resolution||1.5 nm|
|Z axis repeatability||± 1 nm|
|Z axis maximum velocity with settling time||5 mm/sec (~ 10 ms per move)|
|Z axis resonant frequency (unloaded)||> 1 KHz|
|Z axis top plate maximum load||500 grams|
|Z axis top plate stiffness (± 20%)||3 N/μm|
|Z axis top plate in-plane tilt (typical)||10 μrad|
|Dimensions (L x W x H)||242 x 176 x 19 mm
(9½” x 7″ x ¾”)
|Computer piezo control||RS-232 Serial|
|Manual piezo control||Front panel knob|
|External piezo control||0 – 10 VDC Pass-thru|
|Position information (regardless of control)||LCD Display|
|Control buttons||“Home” and “Zero”|
|Power module||12 VDC|
|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|
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