Miniature rotation stage is tiny, fast and precise
28 March 2015
The Q-614 rotation positioning systems from PI miCos are small and feature high position resolution. Its turntable is only 14mm in diameter and just 10mm high, making it one of the smallest precision rotation stages available on the market.
Thanks to its compact design, a rotation range of >360° and velocities of up to 70°/s, it is ideal for use in micro-manipulation, bio-technology and automation applications. The Q-614 also comes in vacuum-compatible versions for 10-9 hPa.
The Q-614 operates in open-loop control, typically achieving a minimal incremental motion of 100µrad.
The drive principle behind the miniature stage is based on a piezomotor inertia drive. This allows for the compact dimensions, the high resolution and the high velocity. Due to its ability to self-lock at rest, the piezomotor requires no power and produces no heat. It holds the position at a holding torque of 6mNm.
The Q-614 is currently the smallest rotation stage within a series of stages that have turntables measuring 22mm or 30mm in diameter, which allows them to be equipped with an additional position sensor for closed-loop operation.
The E-870 drive electronics makes open-loop control for the Q-614 possible and it is especially tuned to the requirements of the inertia drives. One device can serially control up to four channels, and is also available as an easy-to-integrate OEM version, which keeps investment costs low as an added benefit.
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