Nanopositioning system provides 6D motion

Paul Boughton

The F-206.S six-axis Hexapod Alignment System from Nanopositioning Specialist PI (Physik Instrumente) LP, provides 6D motion with 33 nanometre resolution and advanced alignment software for optics and photonics components.
It features parallel kinematics controller/driver with vectorised motion with arbitrary pivot point capability as well as an extensive software package.
The parallel-kinematics design with a virtual pivot point and vector-based 6D motion-controller is what sets the F-206.S system apart from conventional 'stacked multiaxis positioners'. Due to the reduced moving mass (only one common lightweight platform for all six actuators) the system can respond and settle much faster. It is also considerably more compact and accurate than conventional multi-axis stage stacks (serial kinematics). Its parallel-kinematics design and advanced, digital 6D controller minimizes unwanted crosstalk motion.
The F-206.S HexAlign system is for any complex, high-accuracy positioning and alignment task where independent, high-precision motion in six degrees of freedom is required. Its flexibility is based on the virtual-pivot-point capability built into the controller. Since Hexapod motion is not determined by fixed bearings but real-time, six-space control algorithms, this point can be chosen freely with a single software command, a prerequisite for fast and accurate alignment tasks.
The Hexapod comes with powerful control and alignment software, LabView drivers, DLLs, etc, and many programming examples. When equipped with an optional high-speed photometer card, the Hexapod aligns arrays, waveguides & collimators up to 10 times faster than conventional multi-axis positioning stages. 

Precision positioning, alignment and testing of optics, photonics  and MEMS components.

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