The smoke rises and reaches under the smallpox. Smoke detection through fire alarm. When you don't see the flame or smell the smoke, the smoke sensor already knows. It works 24 hours a day, 365 days a year, without interruption.

在报警时，它发出尖啸刺耳的声音，直到烟雾散去。在真实的火灾中它一直工作到被烧毁。

At the time of alarm, it made a shrill sound until the smoke dispersed. In a real fire, it worked until it burned down.

民用住宅的独立式烟感报警器共有两种传感器可供选择：一种是离子传感器，一种是光电传感器。

There are two kinds of sensors for the independent smoke detector of civil residence: one is ion sensor and the other is photoelectric sensor.

火灾报警器使用方法

Application method of fire alarm

离子传感器是通过测量空气中的正负电荷的平衡来工作的。在传感器内部，有一小片放射性物质，这种物质能在感应室内流动的空气中 产生一股微小的电流。在线路板上，有一个电脑芯片用来监测这股电流。

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, which can produce a small current in the air flowing in the sensing room. On the circuit board, there is a computer chip to monitor the current.

当烟雾粒子进入到感应室后，就会扰乱那里的正负电荷的平衡，同时也会使这股电流发生变化。当烟雾逐渐加重，正负电荷的不平衡性就会加强。当这种平衡性达到一定的限度，喇叭就会响起。

When smoke particles enter the induction chamber, they will disturb the balance of positive and negative charges there, and change the current. When the smoke gets heavier, the imbalance between positive and negative charges will be strengthened. When this balance reaches a certain limit, the horn will sound.

光电传感器是通过一束光和一个光的感应器来测量烟的浓度的。该装置设计的时候，光束是偏离感应器的。当烟雾进入到感应室后，烟雾粒子会将部分光束散射到感应器上。当烟雾的浓度逐渐加重，就会有更多的光束被散射到感应器上。当到达传感器的光束达到一定的程度，蜂鸣器就会响起。

Photoelectric sensor measures the concentration of smoke through a beam of light and a light sensor. When the device is designed, the light beam deviates from the sensor. When the smoke enters the sensing chamber, the smoke particles will scatter part of the light beam onto the sensor. When the smoke concentration increases gradually, more light beams will be scattered to the sensor. When the light beam reaching the sensor reaches a certain degree, the buzzer will sound.

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