Positioning Stages
Photonics Spectra
Mar 2018PI (Physik Instrumente) LP, Air Bearings and Piezo Precision MotionRequest Info
The V-551 family of ultraprecision positioning stages from Physik Instrumente LP are available with 0.2-nm resolution linear encoders, ideal for high-end alignment, scanning and automation applications.
The models are equipped with precision crossed roller bearings featuring anticreep cage assist and guiding accuracy of 1-µm straightness and flatness per 100 mm. Two types of position feedback systems are available: absolute-measuring encoders providing 2-nm resolution and incremental encoders providing 0.2-nm resolution with effective 0.5-nm minimum incremental motion at the stage platform.
The frictionless, zero-wear motor drives are also popular in fast automation applications where reliability and maximum up-time are mission-critical, such as in photonics, biotechnology and laser optics.
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https://www.photonics.com/Buyers_Guide/PI_Physik_Instrumente_LP_Air_Bearings_and/c11819