目前国内外常用的火灾探测器种类很多,各有各的优点,但也遍普存在着价格贵、体积大、触点容量小,须经放大电路放大、有误报,不易推广等问题。为了使火灾探测系统缩小体积,简化结构降低成本、便于普及推广使用,我和同志们经过几年的研究,制成 At present, there are many types of fire detectors commonly used both at home and abroad, each having its own advantages. However, there are still many problems such as expensive price, large volume, small contact capacity, amplification by a magnifying circuit, false positives and difficulty of promotion. In order to reduce the size of the fire detection system, simplify the structure to reduce costs and facilitate the popularization and use, my comrades and after several years of research, made