Polymer actuators, sensors, and generators are based on the principle of electromechanical deformation of polymers. The technology is based on a large number of precisely stacked, very thin elastomer layers that are coated with special electrodes. The unique design of the polymer transducer, made of thin layer silicon stacks and developed by CTSystems, a spin-off of the Swiss Federal Laboratories for Materials Science and Technology, replaces and outperforms existing technologies.
Polymer Transducer. Better performance and results.
The polymer transducer’s unique design of thin layer silicone stacks replaces and outperforms existing technologies. The working principle in which electrical power is transformed into mechanical motion by elastic deformation allows for multipurpose and efficient operation. Some of the improvements of the new technology include: low energy consumption, no complex mechanical parts, and a robust and resilient design, just to name a few.
The working principle in general.
When an electrical voltage is applied between the electrodes, an electrostatic field in the dielectric occurs from the charges on the electrodes which produces a Maxwell stress state in the material. As a result, the polymer material is enlarged elastically in the plane and contracts in out of plane direction. As soon as the voltage is switched off and the electrodes are short-circuited the capacitor contracts back to its original shape. By arranging several actuator layers in parallel, the resulting force can be multiplied and the stiffness of the created material can be increased. When the actuators are combined in series, the arising displacement becomes larger.
Low energy consumption.
High energy density and driving power.
No complex mechanical parts.
Robust and resistant polymer.
more than 70 Mio. cycles
Reliability in operation
Conditions: Room temperature, 2.5Hz, 0 to 1200V