Ion smoke detection alarms works
Do you know how the smoke detector alarm works? It may not be very well understood, or it is strange to hear the word. So today, Xiaobian takes everyone to find out.
Smoke is rising, 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. In the event of an alarm, it makes a whistling 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.
