Videos
How does a Piezo Ratchet Mechanism Work in a Closed-Loop Precision Actuator?
Piezo Ratchet Motors are inertia motors based on the stick-slip effect. A small piezo ceramic actuator embedded in a precision mechanism drives a high resolution screw. An optical encoder reads position changes and feeds the information back to a closed-loop controller. Resolution in the nanometer rage is feasible, self-locking design with high holding forces compared to the compact size.
June 23-24, 2026 | McCormick Place
The 2026 Humanoid Robot Forum is happening at Automate in Chicago!
Join industry leaders exploring the technologies, safety, and real-world potential shaping humanoid robotics.
PI (Physik Instrumente) LP
PI is a leading manufacturer of precision motion control and automation systems, hexapod 6-axis parallel robotic stages, air bearing motion systems, Gantry Systems, 3D printing, laser machining, and piezoelectric nano-positioning solutions. Applications include photonics, semiconductor technology, medical engineering, assembly, inspection,
Discover how PI (Physik Instrumente) LP can support your automation journey with their complete range of solutions and expertise.
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PI is a leading manufacturer of precision motion control and automation systems, hexapod 6-axis parallel robotic stages, air bearing motion systems, Gantry Systems, 3D printing, laser machining, and piezoelectric nano-positioning solutions. Applications include photonics, semiconductor technology, medical engineering, assembly, inspection,
XY-Stage with Air Bearings: Planar XY-Table for Precision 2-Axis Linear Motion
Motorized Planar XY-tables based on air bearings provide superior geometric performance such as flatness and straightness compared traditional integrated XY linear stages, or stacked motorized XY stages. PI is a premium supplier of air bearings.
Miniature Multi-Axis Motion System: XY Linear Stage w/ Rotation, Inertia Motor Drive
Driven by a novel inertia-type piezo motor it provides high-resolution and position stability in a miniaturized envelope at low cost.
How does the Piezoelectric Effect Work for Motion? Piezo Mechanisms for Motion Control
The inverse piezoelectric effect enables precision motion and is employed in piezo mechanisms for ultra-precision positioning and motion control.