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Amplified Piezo Actuators

Amplified piezo actuators (APAs) are advanced devices that convert electrical energy into precise mechanical motion. These actuators utilize piezoelectric materials, which expand or contract when an electric field is applied, allowing for high-resolution movements. APAs are widely used in various applications, including precision positioning systems, optics, and robotics, where their ability to deliver rapid, accurate responses is crucial. Their compact design and efficiency make them ideal for environments space and performance are critical.

​APAs use compliant mechanisms to increase the motion range of piezoelectric actuators. Compliant mechanisms are flexible devices designed to motion through the deformation of their material instead of using traditional joints. They offer significant advantages, including reduced part count, simplified manufacturing processes, and enhanced reliability due to fewer movable components. Additionally, compliant mechanisms can provide smoother motion by eliminating slip-stick effect.

Check out Ulsis products to find the best one for your project specifications. If your application requires a new product, Amplified Piezo Actuators can be customized to achieve different motion range and stiffness levels.

APA-220U

Amplified Piezo Actuator providing up to 220 um stroke

APA-220U provides up to 220 um linear motion. It is designed to move large optical components at high frequencies for fast focus mechanisms. Preloading spring maintains enough force on the piezoelectric material for safe operation. 

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APA-40U

Amplified Piezo Actuator providing up to 40 um stroke

APA-40U provides up to 40 um linear motion. It is designed to provide high force and adequate stroke. Best for moving large masses at kHz frequencies. Compact for limited space applications.  

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APA-33U

Amplified Piezo Actuator providing up to 33 um stroke

APA-33U provides up to 33 um linear motion. It is designed to have a good balance between motion range and stiffness. Its small size makes it suitable for aerospace applications where space is limited.

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