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  1. Aerotech
31 October 2017

Aerotech High-Dynamic Linear Piezo Nanopositioning Stages

Aerotech’s QNPHD linear piezo nanopositioning stages provide the benefits of both a stage and actuator in one compact, high-stiffness package.

With a direct-metrology, a capacitive sensor feedback option, high-resonant frequencies, and high-load capacity, the QNPHD is ideal for a wide range of high-speed and high-precision applications such as scanning probe microscopy, disc-drive testing, and semiconductor wafer articulation.

A direct-drive actuation design and optimised structure enables millisecond response and move-and-settle times. Finite element analysis (FEA) optimised precision flexures ensure high-stiffness, long device life, and high-dynamics, while maintaining excellent geometric performance (straightness and angular errors) for critical nanopositioning applications.

Optional closed-loop feedback using a unique capacitive sensor design allows for sub-nanometer resolution and single-digit nanometer linearity errors. The capacitive sensors measure the output of the positioning carriage directly enabling superior accuracy and repeatability.

When coupled with Aerotech’s Q-series controllers and drives, the QNPHD demonstrates sub-nanometer positioning resolution and high-positioning bandwidth. Aerotech’s Dynamic Controls Toolbox and Motion Designer software packages provide a host of advanced yet easy-to-use tools such as Learning Control, Harmonic Cancellation, and Command Shaping, providing improved tracking errors and faster step-and-settle times.

Aerotech’s FlashConfig feature automatically identifies the stage, all operational parameters, and uploads axis calibration data ensuring safe, accurate, and true plug-and-play operation.

The QNPHD is available with rear and side cable exit options along with mounting features for both horizontal and vertical orientations. This flexibility allows the user to orient and package the stage for the most optimal arrangement without designing various adapter plates and brackets that increase size and design complexity. Custom designs and vacuum-prepared versions are available upon request.

Advancements in core technologies such as electronics, software, and imaging have continued to drive the development of new medical devices and diagnostic procedures.
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