May. 21, 2010

Fast Steps with Nanometer Precision

Piezo stepping drives from Physik Instrumente (PI) can be combined with a high-resolution linear encoder for nanometer accuracy over the complete scanning range - and are now also available for PIFOC focusing systems for microscope objectives.
The N-725 PIFOC scanner for microscope objectives with Nexact piezo stepping drives provides travel ranges of up to one millimeter along the optical axis. At the same time the technology allows rapid positioning: The N-725 focusing system achieves transient times of around 20 milliseconds for steps of 200 nanometers. moreMar. 11, 2010

Low-Cost Drive Electronics

The compact Nexact piezo stepping drives from Physik Instrumente (PI) push forward into a new performance class for linear drives: with forces of 10 N, velocities of more than 10 mm/s, and at resolutions of a few nanometers they replace the typical stepper or DC servomotors in applications that depend on the combination of force and resolution on large travel ranges. The E-862 driver electronics is the ideal control for the drives when operated in open-loop or when used with an external positioning and velocity control. more