Smoke detector knowledge

Smoke detectors are used to monitor the concentration of smoke to achieve fire prevention. Smoke detectors use ion smoke sensors. Ionic smoke sensors are advanced technology, stable and reliable sensors, and are widely used in various fire alarms. In the system, the performance is much better than gas-resistance fire alarms.

Inside and outside the ionization chamber, there is a radioactive source 241. The positive and negative ions produced by ionization move to the positive and negative electrodes respectively under the action of the electric field. Under normal conditions, the current and voltage of the internal and external ionization chambers are stable. Once there is smoke, escape the ionization chamber. Interfering with the normal motion of the charged particles, the current and voltage will change, destroying the balance between the inside and outside ionization chambers, so the wireless transmitter sends a wireless alarm signal to inform the remote receiving host to pass the alarm information out.