The evolution of science has led to many discoveries, including linear actuators that are heavily used in different industries. A linear actuator is a device that helps to convert electrical energy ...

But linear actuators built around a novel "rolling-ring" design from Amacoil Inc., Aston, Pa. (www.amacoil.com), use compression and friction forces to smooth rather than impede linear motion.

How does a piezoelectric transducer (actuator) work? Modern Piezo actuators are based on thin piezoceramic layers manufactured in a co-fired process to form a monolithic unit.