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A Compact Power Package: Q-545 Linear Positioning Stage for Precise Positioning

Just 45mm wide, the Q-545 linear stages combine high forces, high velocity and high positioning accuracy that cannot be achieved using conventional drive principles, such as DC or stepper motors in a similar form factor.

The holding force and the maximum feed force are both 8 N, the maximum velocity is 10mm/s. Since the piezomotor is self-locking at rest, it requires no current and generates no heat.

The compact installation space in the Q-545 contains precision components such as crossed roller guides with forced cage control which allow a high travel accuracy of ±50 µrad with a 13mm travel range.

For closed-loop operation, the linear stage is equipped with an optical linear encoder that achieves a resolution of 1 nm. Like the motor, the linear scale is arranged centrally between the guides. This facilitates parallax-free position measurements. Combined with the piezoelectric inertia drive, minimal incremental motion of just a few nanometers can be achieved reliably and repeatedly.

The Q-545 series is also available as a vacuum-compatible version for up to 10-9 hPa.