Aerotech’s QFOCUS™ QF-46 piezo nanopositioning stage series enables microscope objective and optics positioning at high-speeds with nanometre-level performance. Available in closed-loop travels of 100μm and 250μm (120μm and 300 m open-loop), the QF-46 provides long travels without sacrificing dynamic operation and nanometre precision.
- Travels from 100μm to 300μm
- High-stiffness and dynamics resulting in outstanding step-and-settle and scanning performance
- High-precision, frictionless flexure guidance
- Long device lifetime
- Superior positioning resolution and linearity with direct-metrology capacitive sensor option
- Mounting flexibility with a variety of threaded adapters or mounting holes for custom mounting arrangements
- Clear aperture to 29 mm diameter
The QF-46 is designed with next-generation optical instruments and laser machines in mind. For example, the QF-46 can perform better than competitive offerings with larger and heavier higher numerical aperture (NA) objectives due to its higher inherent stiffness. The QF-46 is perfect for any demanding optical application requiring high precision and throughput with long travels.
Precision Mechanical Structure
The QFOCUS QF-46 piezo stages are guided by precision flexures that are optimised using finite element analysis to ensure high-stiffness and long device life. The resulting design offers outstanding stiffness and resonant frequency enabling high process throughput and fast closed-loop response.
In addition, the QF-46 has been designed to provide excellent geometric performance (straightness and angular errors) for critical microscopy and optics positioning applications.
High-Resolution and Positioning Accuracy
The QF-46 piezo stages have the option of closed-loop feedback (-C) using a unique capacitive sensor design that results in sub-nanometer resolution and high linearity. 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 QF-46 demonstrates sub-nanometre positioning resolution, in-position stability (jitter), and high-positioning bandwidth. Software options such as Aerotech’s Dynamic Controls Toolbox and Motion Designer 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. OEM drive options are also available.
The QFOCUS QF-46 is available with threaded adapters to fit most microscopes and objectives. The microscope turret mounting allows easy and fast positioning of the QF-46 at the desired orientation. In addition, tapped holes on the stage body provide alternative mounting for custom interfaces in machines or other optical instruments. The QF-46 is available with a clear aperture up to 29mm. Custom stage designs, travels, and threaded adapters are available.