Excuse me, what's the picture below? There's a smoke detector at home
Under normal conditions, the internal and external ionization chambers are stable in both current and voltage. Once a smoke Cuantao outside the ionization chamber. Interfere with the normal movement of charged particle current, voltage will change, destroy the balance between internal and external ionization chamber, and a wireless transmitter sends wireless alarm signal to the receiving host notification from afar, the alarm message.
Ion smoke alarm has an ionization chamber, ion chamber with radioactive elements - 241 am (Am241), the strength of about 0.8 micro Curie around in the balance of electric field under normal conditions, when there is smoke into the ionization chamber will destroy this balance, the alarm circuit detects the concentration exceeds the threshold will alarm.
It inside and outside the ionization chamber inside the radioactive americium 241, positive and negative ion generation, under the electric field respectively to the positive and negative electrode movement.
From the internal principle, the smoke alarm is by monitoring the concentration of smoke to achieve fire prevention, such as internal Long Xin smoke alarm by ion type smoke sensor, it is a kind of advanced technology, stable and reliable operation of the sensor, is widely used in all kinds of fire alarm system, fire alarm performance is far better than the gas sensing resistance type.
