在当前火灾探测传感方法中最常用的有两大类 ,即感温探测和感烟探测。感烟探测有利于早期发现火警 ,而这个“早”就是火灾预防追求的核心 ,所以在火灾监控系统中 ,感烟探测器的使用占绝大多数。感烟探测器又分为离子型和光电型两大类。早期广泛使用的以离子型居多 ,光电型则使 In the current fire detection sensing methods are the most commonly used two categories, namely, temperature sensing and smoke detection. Smoke detection is conducive to the early detection of fire, and this “early” is the pursuit of fire prevention at the core, so the fire monitoring system, the use of smoke detectors accounted for the vast majority. Smoke detectors are divided into two types of ion and photoelectric type. The early widespread use of ion-based, photoelectric type is so