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- Precision engineering /micromechanics
- Adaptive mechanics
- Active vibration damping
- Adaptronics
- Static and dynamicprecision positioning
- Force generation /materials testing
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P-225 and P-235 are preloaded,high-load piezo actuators (translators) for static and dynamic applications. They provide sub-millisecond response and sub-nanometer resolution.
These ultra-high-force linear actuators consist of PICA™ Power piezoelectric ceramicstacks encapsulated in a stainless steel case with stainless steel end pieces and a frictionless internal spring preload. The high load capacity and preload makes them ideal for machining applications and active vibration cancellation.
High Displacement with Ultra-High Reliability
PICA™ Power actuators are optimized for high-temperatureworking conditions and high-duty-cycle dynamic applications.
All PICA™ piezo ceramics are specifically designed for high-dutycycle applications. With PI's extensive applications knowledge, gained over several decades, performance does not come at the price of reliability. All materials used are specifically matched for robustness and lifetime. Endurance tests on PICA™actuators proveconsistent performance, even after billions (1,000,000,000) of cycles.
Open- and Closed-Loop Models for Optimum Dynamics and Linearity
The standard models are ideal for open loop positioning applications. In this mode the actuator displacement is roughly proportional to the applied voltage.
Open-loop operation is ideal for applications where the fastest response and the highest bandwidth are essential. Here, commanding and reading the target position in absolute values is either not important or carried out by an external feedback loop.
For highest positioning accuracy and repeatability, select the factory installed closed-loop option with integrated ultra-high-resolution strain gauge position sensors and operate with PI servo-control electronics. For more information, readthe tutorial "Piezoelectrics in Positioning" (see link ff).
High Flexibility with PI Amplifiers, Drivers & Controllers
PI offers a wide range of con-trol electronics for piezo actuators from economical, low-power piezo drivers to the E-481 high-performance amplifier / controller providing 2000 W of dynamic power.
For closed-loop operation a wide variety of analog and digital controllers is available. The E-500 modular system can be easily upgraded from an amplifier to a servo controller, including different interface / displaymodules.
Read details in Mounting and Handling Guidelines (see link).
High-resolution amplifiers andservocontrol electronics, bothdigital and analog, see selection guide in the "Piezo Drivers / Servo Controllers" section.
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PDF Catalog Datasheet
