How smoke detectors play a big role

A small smoke detector, how does it play a big role, and what is its working principle?

Do not look at it "small", the structure inside is not simple. Smoke detection by a stand-alone smoke detector is mainly done by an optical labyrinth. Inside the labyrinth there is a set of infrared emission and infrared receiver photocells. When there is no smoke in the environment, the receiving tube will not receive the infrared signal from the launch tube and will not alarm. When there is smoke in the environment, smoke particles enter the labyrinth, and the infrared light emitted by the launch tube is scattered. The intensity of the scattered infrared light has a certain linear relationship with the concentration of smoke. After the subsequent sampling circuit changes, it passes through the detector. The chip judges these changes and confirms whether there is a fire or not. Once the fire alarm is confirmed, the detector sends out a fire signal, the fire indicator light turns on, and the Fengming device starts to sound an alarm.

Ionic smoke sensor is a kind of advanced technology and stable and reliable sensor. It is widely used in various fire alarm systems and its performance is far superior to gas-resistance fire alarms.