CTS offer high quality multilayer piezoelectric products with market leading performance, reliability and dimensions. All the products can be custom designed to match specific requirements. Read more about our capabilities to custom design your multilayer product.
Basics of multilayer products
A multilayer component is composed of several layers of piezoelectric material, alternating with internal electrodes. Internal electrodes are successively positive and negative. All positive electrodes are connected to one external electrode on one side of the component; negative electrodes are connected on the other side of the component.
Benefits of multilayer piezo products
The advantage of multilayer piezoelectric products is that a factor of 100 lower voltages can be used for the same displacement of actuators. In addition, since the internal electrodes are embedded in the ceramic, higher electrical fields can be applied, leading to higher strain levels, and the active material is better protected against the environment.
The multilayer approach enables designs with multiple functions e.g. integration of several actuators within one component or combination of actuator and sensor.
Plate and Ring Actuators
Displacement up to 400 μm at very low operating voltages (60V). Height up to 300 mm.
High Temperature Actuators
Designed to perform at high temperature (maximum 200 °C). Displacement up to 400 μm and height up to 300 mm.
Damage Tolerant Actuators
The fuse technology of the damage tolerant stack fuses out any damaged ceramic element and the remaining ceramic elements continue to operate. Displacement up to 400 μm and height up to 300 mm.
A compact solution with a high resonance frequency (up to 1700 Hz) and displacement up to 950 μm.
Plate and Ring Benders
These actuators generate a bending mode with displacement between 5 μm and 10 mm depending on the type.
The 2D multilayer benders are capable of moving up, down, right and left, or as a single or double s-morph. The piezo design is scalable in terms of stiffness, displacement and dimensions.