There are two main categories of buzzers, namely magnetic and piezo buzzers. Typically, magnetic buzzers are more traditional. Their composition is more convenient compared to piezo buzzers. Their current is also driven through a significant voice call that plays a role in producing a magnetic field. In cases where the voltage is applied, the buzzer’s coil generates a viable magnetic field that allows the diaphragm to create sound. The magnetic buzzer type is prominent for having a low voltage of 12V. It also has high current draws. The magnetic uses of this buzzer are desirable for different applications that need low-pressure levels. In this blog post, manorshi highlights the critical features of magnetic buzzers, including a brief analysis of magnetic vs. piezo buzzers.
Before anything else, you should have a detailed explanation of the structure of a magnetic buzzer. In this paragraph, you will garner the knowledge:
A magnetic buzzer has a coil. It is located in the circuit of the device. The same loop has a permanent magnetic feature coupled with a permeable disk, which is made of metal. The disc is attracted to the magnetic field.
Consequently, when the oscillating signal moves into the coil, it produces magnetic fields which quickly vibrate the internal diaphragm. This usually occurs at a high frequency. With that said, the opposite is exact about a piezoelectric buzzer. Here, we mean that the electric sound generators have a simple ceramic disc. This element has a unique metal plate coupled with a ceramic layer.
Like the piezo technological buzzers, magnetic buzzers come in the transducer as well as indicator configurations. The transistor of a magnetic buzzer is the driving circuit. Some of the indicators of a magnetic buzzer include creating a tone, especially when the direct current voltage is applied.
When it comes to sound production, magnetic buzzers have sound transducers. These elements are generally utilized in some enclosures, especially when it comes to having a resonance chamber within the sound-producing machine. The device can meet specific requirements to some extent. For example, in order to obtain increased sound pressure, you need to increase the voltage of the invention. Vibrating disks found in the magnetic buzzer are attracted to the magnetic field. When the oscillating signal shifts to the coil, it emits the fluctuating magnetic field. This will vibrate the disks.
Which Buzzer Should You Go For? – Weighing In On Piezo Buzzers
When shopping around for a buzzer, it is essential to consider the features of the device. Consider looking at the electrical as well as physical parameters needed. Other than that, you should also look into the frequency of the buzzer, the operating voltage, and resonance. These are primary elements to consider when faced with the need to choose between a piezo buzzer and an electric buzzer.
At the center of piezo-based buzzers, is the prominent piezoelectric element. This feature has a ceramic plate coupled with an adhesive. The sides have an electrode used to enhance electrical conduction. In closing, when choosing between magnetic and piezo buzzers, you should focus on the features of the buzzers.