What is the smoke alarm for?

Smoke alarm , also known as fire smoke alarm, smoke sensor, smoke sensor, etc. Fire prevention is achieved by monitoring the concentration of smoke.

The smoke alarm transmits the smoke alarm signal to the fire control central computer, and the central computer determines whether there is a fire (according to multiple sensors of smoke, temperature, fire light, etc.), and sends out sound and light alarms. At the same time, according to different functions, it can realize automatic fire extinguishing, isolate fire area, guide evacuation, emergency lighting and so on.

From the internal principle, the smoke alarm is to achieve fire prevention by monitoring the concentration of smoke. The smoke alarm uses ionic smoke sensing. It is an advanced technology, stable and reliable sensor, which is widely used in various In a fire alarm system, its performance is far superior to that of a gas-sensitive resistor fire alarm.

It has radioactive source americium 241 inside and outside the ionization chamber. The positive and negative ions generated by ionization move to positive and negative electrodes under the action of the electric field. Under normal circumstances, the current and voltage of the internal and external ionization chambers are stable. Once smoke escapes outside the ionization chamber. Interfering with the normal movement of charged particles, the current and voltage will change, disrupting the balance between the internal and external ionization chambers, so the wireless transmitter sends out a wireless alarm signal to notify the remote receiving host to transmit the alarm information.