| 火灾探测器的工作原理 |
| 添加时间：2018/10/11 16:10:48 浏览次数： |
| 火灾探测器顾名思义就是探测是否有火灾正在发生的设备，根据火灾的特点及其产生物(例如：烟、热、火焰等)的特性，可分为：感烟探测器、感温探测器及火焰探测器三类。 Fire detectors, as the name implies, are equipped to detect whether a fire is occurring. According to the characteristics of the fire and its products (such as smoke, heat, flame, etc.), they can be divided into three categories: smoke detectors, temperature detectors and flame detectors. 火灾探测器的一般工作原理：传感元件检测火灾产生物或火灾发生时的特性值，变送电路将探测元件传来的原始信号转换为电流/电压信号，或是脉冲、开关量，送入火灾自动报警控制器中，控制器对接收到的信号加以计算分析，并判定是否有火灾正在发生，是则发出报警信号。有些系统为减轻火灾自动报警控制器的负担，在火灾侦测器内安装了CPU，承担了控制器大部分的数据计算和分析任务。现在，简单介绍三种探测器的工作原理。 The general working principle of fire detectors is that the sensor detects the characteristic value of fire products or fire occurrence, and the transmitting circuit converts the original signal transmitted by the detecting element into current/voltage signal, or pulse and switching quantity, and sends it into the automatic fire alarm controller. The controller calculates and analyzes the received signal. And determine whether there is a fire happening, then send out the alarm signal. In order to reduce the burden of automatic fire alarm controllers, some systems have installed CPU in fire detectors, which undertake most of the data calculation and analysis tasks of the controllers. Now, briefly introduce the working principle of the three detectors. |
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