Pzt5 ultrasonic Piezoelectric Ceramic Material Piezo Tube

In order to improve the reliability of Piezoelectric ceramics, we usually use metal shell packaging to reduce the lateral force that the external mechanical structure may bring to piezoelectric ceramics. However, even if the piezoelectric actuator with shell package is used, it is necessary to deeply explore the technical background of decompressing the application of ceramic and ensure high reliability through proper design and operation.

Even if the structure of the piezoelectric system has proved reliable, any seemingly minor changes need to be reassessed. In some practical applications, the reliability of piezoelectric ceramics is often discussed under the following two limit conditions.

Every link in the operation process must be strictly controlled, and the overload, unreasonable mechanical structure, mechanical compensation and improper driving conditions correction shall be avoided through the actual test and evaluation procedure, so as to achieve high reliability.

Piezoelectric ceramics can output performance according to limited parameters in a short time, but we will not recommend this method. When long-term reliability, long-term operation and high working cycle are necessary conditions, the successful short-term test of piezoelectric system does not mean that long-term use is equally safe and reliable. Improper operation will not damage piezoelectric ceramics immediately, but it will reduce long-term reliability and fail to reach the expected working cycle.

The reliability of piezoelectric ceramics is influenced by the load mechanical structure, drive control, environment and other conditions. In most applications, due to cost, the smaller the piezoelectric ceramics users often want to use, the better. However, this makes piezoelectric ceramic components the weakest link in many mechanical design structures In addition, piezoelectric ceramics are relatively complex materials, very sensitive, improper operation is easy to cause damage.