Why Q-Motion... ? “I‘m pleased to now be able to offer positioning solutions to our customers where classical drive technologies could only fulfill expectations to a limited extent. ” Mark Freyer, Head of Product Division Inertia Drives Why did we develop this product line? Q-Motion stands for a series of miniaturized stages with piezomotor drive principle. Because PI received a large number of enquiries, we noted an increased demand for these very small positioning axes and manipulators, for example, in mobile applications for measuring and medical devices, in industrial microassembly or use...

Closes a Gap PI draws from a wealth of experience when it comes to implementing piezo ceramic drives in positioning systems. However, PI is certainly not restricted to a special drive technology, but is always able to offer the optimum solution for the many different requirements in the field of motion and positioning. All piezomotor drive principles are distinguished by: ■ ■ Piezo motors combine the high position resolution of the piezo actuators with the unlimited travel ranges of classical drives. The drives in the Q-Motion series are based on one piezoelectric inertia drive that can now be...

Maximum Flexibility The piezoceramic actuators form the heart of the piezo inertia drive. It can be customized to the special installation conditions of the customer. The electronics are made available from the OEM module to the „intelligence on the chip“ This . makes it easy to integrate the circuitry into customer-specific drivers. Individual axes can be stacked for multi-axis applications such as sample manipulation and adjustment of optical elements, detectors and fiber arrays. Parallel kinematic systems with six degrees of freedom that fit onto the palm of the hand are interesting with respect...

Operating Principle Piezo inertia drives are space-saving and inexpensive piezo-based drives with relatively high holding forces and a virtually unlimited travel range. They make use of the stick-slip effect (inertia effect) – a cyclical alternation of static and sliding friction between a moving runner and the drive element generated by the piezo element – for a continuous feed of the runner. The operating frequency of more than 20 kHz enables the runner to be directly driven at velocities in excess of 10 mm/s (70°/s). Tangential Drive A drive element mounted on the side of the runner allows...

Properties Nanometer Resolution During the slow control phase (stickphase), in which the runner is moved, the drive behaves in the same way as a classical piezoceramic actuator. By varying the voltage applied, the actuator can take any position and therefore achieves the high motion resolution that is typical for piezoceramics. Together with an incremental encoder for measuring the position, it is possible to achieve high positioning accuracy and repeatability of the motion over long travel ranges. PIShift Rod Drive Compared with tangential drives, rod drives provide a larger coupling surface...

The minimum incremental motion is specified with 2 nm for closed-loop linear stages with incremental encoders (1 nm resolution). The small steps are performed reliably with the analog expansion of the piezoelectric actuator. The maximum velocity is 10 mm/s with 20 kHz operating frequency. The graph shows position vs. time over a short range of 0.3 ms and 3 µm travel. Even with a sample frequency of 133 kHz, the profile is linear and the velocity constant. The unidirectional repeatability of a Q-522 with 1 nm encoder resolution is 25 nm. Cost-Effective Piezo inertia drives are based on a cost-effective...

Q-Motion Miniature Stages HIGH RESOLUTION, AFFORDABLE PRICE ½ Linear stages, rotary stages and parallel kinematic robots with six degrees of freedom ½ Direct position measurement with incremental encoder with up to 1 nm resolution (optional) ½ Piezomotor driving principle: Self-locking when at rest, therefore no holding current, no power consumption, no heat generation and no servo jitter Applications Applications can be found in industry and research. The small form factor and the vacuum compatibility make Q-Motion stages ideal positioning tasks in Beamline Instrumentation or electron microscopy....

Q-Motion Linear Stages Q-521 Q-Motion Miniature Linear Positioning Stage Very Small Linear Positioning Stage with Position Control, High Resolution and Attractive Price Q-522 Q-Motion Miniature Linear Stage Piezomotors for Small Dimensions, High Resolution and a Favorable Price Q-545 Q-Motion Precision Linear Stage High Forces and Small Size Through Piezomotors Q-Motion Rotary Stages Q-614 Q-Motion Miniature Rotation Stage Minimum Dimensions: 14 mm Turntable Diameter Q-622 Q-Motion Miniature Rotation Stage Minimum Dimensions: 22 mm Turntable Diameter Q-632 Q-Motion Rotation Stage Compact Through...

Q-Motion Miniature Linear Positioning Stage W I T H P O S I T I O N C O N T R O L , H I G H R E S O L U T I O N A N D AT T R A C T I V E P R I C E Q-521 ½ Only 21 mm wide and 10 mm high ½ Direct position measurement with integrated incremental encoder (optional) ½ Up to 2 nm minimum incremental motion ½ XY mounting without adapter ½ Travel range 12, 22 or 32 mm ½ Velocity 10 mm/s ½ Feed force 1 N ½ Versions vacuum-compatible to 10-9 hPa Precision-class micropositioning stage Q-Motion stages are distinguished by their extremely small design and high position resolution in the nanometer range....

Preliminary Data 12 mm travel range, resolution 4 nm 12 mm travel range, resolution 1 nm, UHV version Q-521.14U 22 mm travel range, resolution 4 nm 22 mm travel range, resolution 1 nm, UHV version Q-521.24U 32 mm travel range, resolution 4 nm 32 mm travel range, resolution 1 nm, UHV version Q-521.34U 12 mm to 32 mm travel range, open-loop, UHV versions Q-521.x0U Active axis Travel range Integrated sensor Linear encoder Linear encoder Linear encoder Linear encoder Linear encoder Linear encoder Unidirectional repeatability over entire travel range Bidirectional repeatability over entire travel...