![]() ![]() No effect from the electromagnetic field. Their vibration sensitivity makes them prone to random vibrations. Here are some of the main pros and cons of piezoelectricity. Pros and Cons of Piezoelectricityĭespite all the praise, piezoelectricity also has some limitations. Also, due to their simple design and minimum moving parts, they are great for miniaturized devices such as video cameras and mobile phones. These actuators are beneficial, especially in devices that require precise positioning, like mirrors in satellites. Inside the actuator system, a piezoelectric material sits between a metal plate and an actuator device.Īpplying a high voltage current into this system causes the piezoelectric material to expand and contract at intervals, causing the actuator to move rhythmically. Piezoelectric ActuatorsĪctuators utilize the inverse piezoelectric effect to power devices such as braille and knitting machines. In addition, electromagnetic fields do not affect the performance of piezoelectric devices, which makes them better for rapid start and stop. Besides, they provide greater force and torque despite being generally smaller and more compact. That is why piezoelectric motors have many advantages compared to conventional electromagnetic engines. The main advantage of the piezoelectric effect is the tiny change in correspondence to high voltage applications – making it perfect for use with extreme accuracy in positioning. Which then produces a sufficient spark that causes an electrical charge to ignite the gas. Plus, all you do is press a button, and a spring-loaded hammer hits a piezoelectric crystal. The best examples are gas grills and electric cigarette lighters. This is the most popular practical application of the piezoelectric principle there is.
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