Piezo actuators and electronics

Piezoelectric actuators, according to the broadest meaning, cover a wide range of concepts. Potentially, all devices using one of the piezo effects can be considered as piezo actuators. To be more specific, the following classification can be applied based on effects and uses.

The direct piezoelectric effect has been discovered by Pierre and Jacques Curie in 1880: Applying a mechanical pressure on some crystals as Quartz or Rochelle Salts generates electric charges. This effect is used to develop sensors for dynamic force or electric generators for vibration energy harvesting. Standard piezo actuators from CEDRAT TECHNOLOGIES such as APA® can be used for such applications because the direct piezoelectric effect is naturally present in all piezo actuators. CEDRAT TECHNOLOGIES can also develop customised piezo sensors and