Types of Electromagnetic Active Buzzers and Common Faults

Electromagnetic active buzzer is a common sound signal device, widely used in industrial control, automotive security and other fields. According to different working principles and structural features, electromagnetic active buzzers can be divided into various types. Common types of electromagnetic active buzzers include:

Electromagnet buzzer: Electromagnet buzzer produces sound through the suction and release force generated by electromagnet. It has the characteristics of simple structure, low production cost and long life.

Electromagnetic vibration buzzer: electromagnetic vibration buzzer is the use of electromagnetic force will vibrate the diaphragm vibration and produce sound principle. It has the advantages of clear sound, pure sound quality, high volume and so on.

Electromagnet oscillating buzzer: Electromagnet oscillating buzzer combines the principle of electromagnet and oscillating diaphragm, which has the features of clear sound, excellent sound quality and adjustable volume.

Electromagnetic resonance buzzer: Electromagnetic resonance buzzer is through the electromagnetic force to make the resonance diaphragm vibration and produce sound principle. It has the advantages of clear sound quality, high volume and low power consumption.

The above is a common type of electromagnetic active buzzer, different types of buzzers in specific application scenarios have different characteristics and advantages. But in the process of use, electromagnetic active buzzer will also appear some common failures, mainly including:

The sound becomes small or no sound: this is the buzzer power supply voltage is insufficient or the buzzer internal coil burned out and other reasons. The solution is to check whether the power supply is normal, and replace the bad coil in time.

Frequency instability: this is the buzzer internal oscillation circuit failure or component aging and other reasons. The solution is to check whether the oscillation circuit is normal, replace the aging components.

Poor sound quality: this may be the buzzer diaphragm material aging or damage and other reasons. The solution is to replace the diaphragm material or replace the buzzer as a whole.

Trigger is not sensitive: this is the buzzer internal trigger circuit failure or component failure and other reasons. The solution is to check whether the trigger circuit is normal, replace the failed components.

Electromagnetic active buzzer in industrial and civil equipment plays an important role, but in the process of using a variety of failures. Timely detection and repair of the buzzer can effectively avoid the impact of failure to ensure the normal operation of the equipment.