PI Direct Drive Linear Motor Stages Deliver Nanometer Resolution

Resource from: https://www.powertransmission.com/news/ Likes:213

Jan 03,2018

PI has released a new precision feedback option for its linear stages equipped with direct-drive ironless 3-phase motors. The V-551 family of ultra-precision positioning stages models is equipped with precision crossed roller bearings featuring anti-creep cage assist and excellent guiding accuracy (1 μm straightness/flatness per 100 mm).

Two types of position feedback systems are available: absolute-measuring encoders providing 2 nanometers resolution and incremental encoders providing 0.2 nanometers resolution with effective 0.5 nm minimum incremental motion at the stage platform.

Ironless linear motors are used when high dynamics needs to be combined with extremely smooth motion. They are ideal for applications where extremely constant velocity is required, such as in optics inspection, metrology, photonics, interferometry, and semiconductor test equipment. The frictionless, zero-wear motor drives are also popular in fast automation applications, where reliability and maximum up-time are mission-critical.

(https://www.powertransmission.com/news/)

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