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Posted: Jun 02, 2016

Nanometer Precise Compact Linear Positioner is based on Novel Stick-Slip Piezo Motor

(Nanowerk News) PI (Physik Instrumente), a top provider of precision motion control and positioning solutions for more than 4 decades, announces the release of a new compact linear stage, just 45mm wide, which combines high positioning accuracy with higher force and velocity than conventional inertia drives. The space-saving Q-545 provides advantages for use in research and OEM instrumentation that require positioning precision and alignment, such as photonics, bio-technology, nanotechnology, precision-optics, life-sciences, or medical design.
Q-545 linear positioner
How It Works
Stick-slip drive motors, lacking gears, are powered by the natural difference in the static and dynamic friction coefficients found between two surfaces. This direct linear motion drive principle reduces the number of components that can wear, making the stages more compact, reliable, and cost efficient. In addition to a number of standard product variations with 0.5 and 1 travel, PI stages and drives can be customized for OEM production quantities.
An integrated optical reference encoder and limit switch provide further positioning control and accuracy for this compact stage with 5nm resolution. DC servo motor versions are available on request.
Watch Video of Different Types of Piezo Motor Designs
Self-Clamping at Rest, High Force and Stability
With holding force of 8N and maximum velocity of 10mm/sec, the self-clamping motor design provides long-term power-off position-hold capabilities without the need for a brake -- a space and energy saving advantage.
Nanometer Precision Encoder Option
The stages can be run in open and closed-loop. A high resolution option with integral linear position encoder providing 1 nanometer resolution is also available. Nonmagnetic versions and an ultra-high-vacuum version for pressures of 10-9 hPa are optional.
Specifications, Datasheet, More Information
Features & Advantages'
  • Self-Clamping High Precision Ceramic Motor
  • XY Configurations
  • Linear Encoder Available
  • 8N Feed Force
  • 13 and 26mm Travel Range
  • 10mm/sec Max. Velocity
  • Standard and Custom
    PI has in-house engineered solutions with over 4 decades of experience working with customers to provide products that meet application demands, and can quickly modify existing product designs or provide a fully customized OEM part to fit the exact requirements of the application.
    About PI
    PI is a leading manufacturer of precision motion control equipment, piezo motors, air bearing stages and hexapod parallel-kinematics for semiconductor applications, photonics, bio-nano-technology and medical engineering. PI has been developing and manufacturing standard & custom precision products with piezoceramic and electromagnetic drives for 4 decades. The company has been ISO 9001 certified since 1994 and provides innovative, high-quality solutions for OEM and research. PI is present worldwide with eleven subsidiaries, R&D / engineering on 3 continents and total staff of 850.
    Source: PI (press release)
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