Views:28 Author:Site Editor Publish Time: 2018-07-17 Origin:Site
A piezo buzzer is a sound producing device.
The main working principle is based on the theory that, whenever an electric potential is applied across a piezoelectric material, a pressure variation is generated. A piezo buzzerconsists of piezo crystals in between two conductors.
When a potential difference is applied across these crystals, they push one conductor and pull the other conductor by their internal property. The continuous pull and push action generates a sharp sound wave.
Piezo buzzers generates a loud & sharp sound. So,they are typically used as a alarm circuits. Also they are used to make an alert of an event, signal or sensor input. A special characteristics of piezo buzzer is,the sound pitch or level is not depended on the voltage level that is, it works only in a specific voltage range.
Typically, a piezo buzzer produce can generate a sound in the range of 2 to 4 kHz
Changzhou Keliking Electronics Co., Ltd.
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