Piezo rings have a variety of functions and are suitable for numerous applications. When a voltage is applied, the piezoelectric ring deforms and/or vibrates. A DC voltage will cause the piezoelectric ring to deform, allowing the ring to function as an actuator. An AC voltage will cause the piezo ring to vibrate. This is the most common function of a piezo ring actuator. Piezoelectric rings are often used for ultrasonic vibrations, either in ultrasonic scalers for dental applications, or in ultrasonic welders. Conversely, if mechanical strain (vibration or pressure) is introduced to the piezoelectric ring, it generates a current. The latter effect allows the piezo ring to function as a sensor.
Piezo ring actuators are a specific type of multilayer stack actuator in the shape of a ring. The hole in the center of the piezo ring allows other connections with outside wires. Piezoelectric ring actuators are specially developed to perform under harsh environments. They are very stable, offering high force, quick response, and high precision. The small dimensions and light weight of the piezoelectric rings demonstrate a flexible range of movements and precision. Piezo rings are commonly found in nanopositioning, microscopy, and precision machining. In ultrasonic applications, piezoelectric rings are found in dental, welding, and cleaning equipment. The piezo ring actuators are small enough to be insulated with wire leads or without connecting wires. They are reliable and can last a lifetime. Piezoelectric ring sensors are often used for air flow or liquid flow measurement.
Piezo Direct offers a variety of piezo rings. Shape, finish, material, dimensions, and performance levels can all be customized! Piezo Direct’s rings are suitable for numerous applications. Unsure what you need? Contact us! Piezo Direct is more than happy to work with you to design a custom piezoelectric ring to meet your application requirements.