Buzzer working principle
Time:
2024-04-09 00:03
Source:
The buzzer is a device mainly used to sound an alarm, and its working principle is based on oscillating vibration. Usually the buzzer consists of a vibrating device and a driving device. When energized, the drive device generates an electrical signal of a certain frequency, which causes the vibration device to vibrate, thereby causing the entire buzzer to resonate. In the resonance state, the vibration device will continue to vibrate, causing the vibration of the surrounding air, and then produce sound.
The vibrating device of the buzzer is usually made of piezoelectric ceramics or magnetic materials, which are compressed or deformed under the action of an electric or magnetic field, thereby generating vibration. The drive device is different according to the buzzer type, can be electronic control chip, oscillation circuit and other forms.
When the buzzer works, the vibration frequency depends on the resonance characteristics of the vibration device, and is generally within the range of the sound that can be heard by the human ear. Buzzer is often used in the application of alarm, alarm clock, electronic devices to remind and other occasions, its simple, cheap and reliable characteristics make it widely used in various fields.
In general, the buzzer produces sound through vibration, and its working principle is simple and effective. In modern society, the buzzer plays an important role in various occasions and has become one of the indispensable electronic components in people's lives.
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