PI (Physik Instrumente) L.P., a manufacturer of nanopositioning equipment — offers the LPS-45 series of piezo positioning stages manufactured by PI subsidiary PI miCos.
This low profile linear translation stage is driven by a PIshift inertia-type piezo motor. The closed-loop stage is equipped with a high precision optical linear encoder providing for nanometer-level repeatability. An open-loop version and vacuum compatible and non-magnetic versions are also offered.
The PIShift piezo inertia drive is very quiet, due to its high operating frequency of 20 kHz. It provides high holding forces of 10 N. The drive principle works similar to the classic tablecloth trick, a cyclical alternation of static and sliding friction between a moving runner and the drive element.
When at rest, the maximum clamping force is available, with no holding current and consequently no heat generation.
PI provides a large variety of nanopositioning stages, based on several piezo-motor techniques, as well as classical electromagnetic drives.
Despite the very low profile of only 0.8” (20 mm) and compact dimensions, the stage offers a standard travel range of 30 mm (1.2”) and can be scaled up for longer travels, if needed.
PI’s precision linear translation stages are of great value for precision alignment in photonics, semiconductor, bio/nanotech applications as well as in scientific research.