Resonance frequency simulation
Whether it is a Piezo buzzer or Magnetic buzzer, a resonant chamber or cavity is needed to increase the SPL of the product itself. Let's use a guitar, for example: if the guitar has only strings without the body, it would not be easy to hear the sound. The sound is amplified through a resonating body.
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The chamber is a fundamental part of the buzzers. Strings create multiple frequencies while playing the guitar. However, the buzzer usually only has a single frequency (ex. 3.2KHz) that would be performing the highest SPL as a peak. The frequency we want relates to the chamber we design.
![](upload/xheditor/412.png)
Kingstate has been designing and customizing the chamber and sound cavity to meet customers' requirements efficiently. In the past, we needed to make a mockup and experiment to get test results; now, we have advanced software that directly uses the 3D model to make the simulation without a physical sample. It helps significantly reduce costs and save time.
![](upload/xheditor/413.png)
Check next: The structure of the sound hole.