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You are here: Home / News / Industry Information / Types of Buzzers

Types of Buzzers

Views:212     Author:Site Editor     Publish Time: 2018-02-05      Origin:Site

Types of Buzzers

Electromechanical


Early devices were based on an electromechanical system identical to an electric bell without the metal gong. Similarly, a relay may be connected to interrupt its own actuating current, causing the contacts to buzz. Often these units were anchored to a wall or ceiling to use it as a sounding board. The word "buzzer" comes from the rasping noise that electromechanical buzzers made.

Mechanical


A joy buzzer is an example of a purely mechanical buzzer. They require drivers.

Piezoelectric 


A piezoelectric element may be driven by an oscillating electronic circuit or other audio signal source, driven with a piezoelectric audio amplifier. Sounds commonly used to indicate that a button has been pressed are a click, a ring or a beep.


A piezoelectric buzzer/beeper also depends on acoustic cavity resonance or Helmholtz resonance to produce an audible beep.


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