What is the difference between piezoelectric buzzer and electromagnetic buzzer
Piezoelectric buzzers use piezoelectric materials, that is, when the piezoelectric materials are deformed by external forces, the piezoelectric materials will generate electric charges. Likewise, piezoelectric materials deform when energized.
The electromagnetic buzzer mainly uses the characteristics of the current-carrying conductor to generate a magnetic field, and uses a fixed permanent magnet and the current-carrying conductor to generate a magnetic force to push the tympanic membrane fixed on the coil.
Due to the different pronunciation principles of the two buzzers, the piezoelectric structure is simple and durable, but the single tone is poor, and it is suitable for alarms and other equipment. The electromagnetic type is mostly used for voice, music and other equipment because of its good sound.
