[ Huaqiang Security Network News ] 
How does the fire alarm work?
The detection alarm works: the smoke is rising and reaching the bottom of the ceiling. The smoke alarm found a fire through the smoke. When you don't see the flame or smell the smoke, the smoke detector already knows. It keeps working, 24 hours a day, 365 days a year, never stops. At the time of the alarm, it makes a screaming sound until the smoke dissipates. Ion sensors work by measuring the balance of positive and negative charges in the air. Inside the sensor, there is a small piece of radioactive material that produces a tiny current in the air flowing through the sensing chamber. On the board, there is a computer chip to monitor this current. When the smoke particles enter the sensing chamber, it will disturb the balance of positive and negative charges, and will also change the current. As the smoke gradually increases, the imbalance between positive and negative charges will increase. When this balance reaches a certain limit, the horn will ring. The above describes the working principle of the fire alarm. The following describes the circuit diagram of the fire alarm.
The detection alarm works: the smoke is rising and reaching the bottom of the ceiling. The smoke alarm found a fire through the smoke. When you don't see the flame or smell the smoke, the smoke detector already knows. It keeps working, 24 hours a day, 365 days a year, never stops. At the time of the alarm, it makes a screaming sound until the smoke dissipates. Ion sensors work by measuring the balance of positive and negative charges in the air. Inside the sensor, there is a small piece of radioactive material that produces a tiny current in the air flowing through the sensing chamber. On the board, there is a computer chip to monitor this current. When the smoke particles enter the sensing chamber, it will disturb the balance of positive and negative charges, and will also change the current. As the smoke gradually increases, the imbalance between positive and negative charges will increase. When this balance reaches a certain limit, the horn will ring. The above describes the working principle of the fire alarm. The following describes the circuit diagram of the fire alarm.
Fire alarm circuit diagram
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