一

One

离子型烟雾探测器

Ion type smoke detector

此类探测器会产生由不带电的粒子经电离后形成带电的粒子(离子)，故称之为离子型烟雾探测器。

Such detectors produce charged particles (ions) that are ionized by ionized particles, which are called ionic smoke detectors.

电极之间的空气受直流电压调制，借助辐射源产生传到而形成离子，并产生电流

The air between the electrodes is modulated by a DC voltage, which is generated by radiation sources to generate ions and produce an electric current

烟雾粒子附着离子后，电流信号减弱，且此信号变化与烟雾粒子量成比例

After the smoke particle attaches to the ion, the current signal weakens, and this signal change is proportional to the amount of smoke particles

离子探测器适用于开放性火灾的探测

Ion detectors are suitable for detecting open fires

在两块电极板之间的空气受直流电压的调制而被电离，如借助于一个微小的放射性辐射源产生传导作用。由于被电离化，在采样探测腔内会产生微弱的电流信号。而当烟雾粒子进入到此探测腔时，这些离子会附着了烟雾粒子后减弱了电流，减弱值与测量范围内的烟雾粒子数量成一定的比例。

The air between two electrodes is ionized by the modulation of the DC voltage, such as conduction by means of a small radioactive source. Due to ionization, a weak current signal is generated in the sample chamber. When smoke particles enter the probe, these ions adhere to smoke particles, weakening the current and reducing the value to a certain proportion of the amount of smoke particles in the measurement range.

来自于离子探测器的信号成比例于探测腔内的烟雾粒子数量。因此离子烟雾探测器尤其适用于开放型火灾的探测，如产生大量的细微的初期不可见烟雾粒子的火灾。但不适用于仅产生少量的大型烟雾粒子的阴燃型的火灾。

The signal from the ion detector is proportional to the number of smoke particles in the probe. As a result, ion smoke detectors are especially suited for open fire detection, such as fires that produce large amounts of subtle, invisible smoke particles. But do not apply to only produce a large type of smoldering smoke particles of a small amount of fire.

二

Two

光电型烟雾探测器

Photoelectric smoke detector

顾名思义，光电感烟探测器通过烟雾的光散射原理来测量。

As the name suggests, the photoelectric smoke detector is measured by the light scattering principle of smoke.

内部构造(探测腔)设置了光学传感器(发射光源和光电接收器)

An optical sensor (light source and photoelectric receiver) is provided inside the structure (detection chamber)

烟雾进入探测腔会阻挡光的发射而产生散射

The smoke enters the detector chamber and blocks the emission of light and scatters it

光电接收器会接收到由于光的散射而产生变化的信号，继而产生电流信号的改变

The photoelectric receiver receives a signal that changes due to scattering of light, which in turn produces a change in the current signal

探测器内部构造，尤其是光的发射源和接收器的位置会直接影响探测的反应。从内部结构(探测腔)来看，光电接收器被设计安装的位置可以不会直接接收来自发射光源的红外线，在没有烟雾的时候，光线被射入一迷宫结构并被完全吸收；如果有任何烟雾粒子进入红外光线发射的光束区域，光线就会被散射，继而光电接收器接收的光信号发生改变。信号的强度由烟雾浓度和烟雾粒子的光学特性来决定。

The internal structure of the detector, especially the location of the light source and receiver, will directly affect the detection response. From the internal structure (detecting cavity), photoelectric receiver is designed the installation position can not receive from the infrared emission source directly, when there is no smoke, light is injected into a labyrinth structure and was completely absorbed; if there is any smoke particles into the infrared beam region line emission, light scattering and optical signal will be. The photoelectric receiver is changed. The intensity of the signal is determined by the concentration of smoke and the optical properties of the smoke particles.

大量的白烟粒子的散射能力非常高，油烟粒子和黑烟散射光非常细微，这就是为何光电感烟探测器相当于可以捕捉到可见的白烟粒子，并且尤其适合探测那种火灾中的白烟带有明显的烟雾光谱标记的火灾。前向散射探测器更适用于探测阴燃的白烟火灾，而具有后向散射的探测器倾向于适合探测产生黑色烟雾粒子的火灾。

A large number of white smoke particle scattering ability is very high, the oil smoke particles and smoke scattered light is very subtle, this is why photoelectric smoke detector is to capture the white smoke particles in the visible, and is especially suitable for detecting the fire in the white smoke with smoke spectrum obviously marked fire. White smoke fire detector scattering is more suitable for the detection of smoldering, and has the backward scattering detector suitable for detecting tendency to produce black smoke particles of fire.

三

Three

多重复合型火灾探测器

Multiple compound type fire detector

多重复合型火灾探测器配备了至少2个以上的传感器，通过合适的方法其信号可以相互关联。如此类型的探测器常常被称之为具有更高精度的多判据探测器，其能够更早期地可靠探测不同的火灾现象。

Multiple composite fire detectors are equipped with at least 2 sensors, and their signals can be correlated by a suitable method. Such detectors are often referred to as more accurate multi criteria detectors, which can detect different fire phenomena more reliably in the early stage.