Piezo linear stepper actuator
max. 15 N, max. 30 mm | PiezoWalk® series
Physik Instrumente
Zero-Wear Piezo Stepping Drive, Ideal for Micro- and Nano-Manipulation
Integrated Linear Encoder Option for Highest Accuracy with 20 nm Resolution
Very High Acceleration, e.g. for Cell Penetration
Two Operating Modes: Continuous Stepping Mode and Continuously Variable, High-Dynamics Analog Mode for 30 pm Resolution**
Up to 10 N Force Generation
Self Locking at Rest, no Heat Generation
Smooth Motion, no Closed-Loop Jitter
Vacuum-Compatible and Non-Magnetic Versions
The compact N-381 linear actuators are ideal drives and micro manipulators e.g. for biotechnology and nanotechnology applications. Rapid accelerations, velocities of 10 mm/s and forces up to 10 N enable high-dynamics and throughput for automation tasks. The PiezoWalk® drive principle allows long travel ranges and fast oscillations of 7 µm amplitude with frequencies up to several 100 Hz. This "analog mode" can be used to provide rapid acceleration, e.g. in cell penetration applications, or smooth motion for dynamic laser tuning or even for active damping of oscillations. Two models are available: The N-381.3A model is equipped with a high-resolution position sensor, allowing sub-micrometer repeatability in closed-loop operation. The N-381.30 open-loop version is intended for high precision applications where the absolute position is not important or is controlled by an external loop (video, laser, quadcell, etc.).
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