Composition and principle of piezo disc benders

1. Composition of piezo disc benders

   
   

2.The principle of unimorph bimorph piezo

Piezoelectric ceramic buzzer works by the principle of piezoelectric effect, which generates mechanical vibration when an alternating voltage is applied thereto; on the contrary, it also generates a voltage signal when a mechanical force is applied thereto. Therefore, the piezo diaphragm piezoelectric buzzer can be used as a vibration sensor. When the piezoelectric ceramic element is subjected to mechanical force, the voltage signal generated is very weak. Generally, the voltage sensor should be connected to the voltage amplifier. Piezoelectric ceramic sounder transducer is widely used in the clocks, computers, telephones, washing machines, various buzzers, alarms (burglar alarms, etc.).