Product category:
Positioning stages - linear, rotary, multi-axis
News Release from: PI (Physik Instrumente) | Subject: Z-nanopositioning system
Edited by the Manufacturingtalk Editorial
Team on 07 July 2006
Nanopositioning Z-stage has
piezoelectrics/servos
A fully-integrated hybrid Z-nanopositioning system employing piezoelectric and DC-motor drives gives unlimited resolution and very fast response with long travel ranges and high holding forces.
PI (Physik Instrumente), a leading manufacturer of nanopositioning and precision motion-control equipment for nanotechnology, photonics, semiconductor and life science applications, introduces the world's first fully-integrated hybrid Z-nanopositioning system employing piezoelectric and DC-motor drives - the M-714 precision Z-stage / C-702 Hybrid Controller combine the well-known piezo drive advantages of unlimited resolution and very fast response with the long travel ranges and high holding forces of a servo-motor / ballscrew arrangement Typical applications include metrology, surface inspection, microscopy, laser technology, and interferometry
This article was originally published on Manufacturingtalk on 6 Jul 2006 at 8.00am (UK)
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Features and advantages include the following.
* 2 nanometer linear encoder resolution.
* Active compensation of stick/slip during startup and settling.
* Active backlash compensation.
* Excellent velocity control.
* Millisecond settling to nanometer accuracy.
* Reliable execution of nanometer level increments.
* 7mm (1/4in) vertical travel range.
* High holding forces with minimum power consumption.
* 10kg (22 lb) vertical load capacity.
* No counterbalance mechanism required.
* Hybrid controller technology is key to success - the highly specialized C-702 Hybrid Controller reads the stage position from an integrated, 2nm precison linear encoder and continuously actuates both the piezoelectric and servo motor drives in a way to provide the best possible overall performance.
Due to their instantaneous, sub-millisecond response, the integrated piezo actuators provide active stick/slip compensation during startup and settling.
They also improve velocity control and positioning performance when nanometer level steps need to be executed.
* Novel high-bandwidth encoder interface, realtime operating system - the C-702 Hybrid controller is equipped with a novel high-speed encoder interface and can handle encoder count rates of 100 million pulses/s.
Thanks to its real-time operating system, the intricacies of the hybrid drive are completely transparent to the user.
Interface to the host computer is via TCP/IP or RS-232; this interface makes it possible to operate and monitor the system over any TCP/IP-compatible network (intranet/internet).
A 100mm translation stage and a 100mm hybrid translation stage are also available. Request a free brochure from PI (Physik Instrumente) ...
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