基于光声原理的早期火灾探测系统的研究

基于光声原理的火灾探测是一种新型非接触式、直接测量火灾参数的早期火灾探测技术。本文基于光声原理设计了早期火灾探测系统,利用两个光声腔对早期火灾产生的烟颗粒和一氧化碳进行了复合测量．实现了对早期火灾有效地探测；并设计和试制了基于光声原理的早期火灾探测系统和相应报警算法。在实验燃烧室对其进行了测试,并根据实验结果得出了其实现早期火灾探测的关键参数。实验证明，基于光声原理的早期火灾探测系统能通过对烟颗粒和CO复合测量，达到实现火灾早期探测报警的目的。

Research of Photoacousic Carbon Monoxide and Smoke Compound Detection System for Fire Warning

Photoacousic carbon monoxide and smoke compound detection is a new fire detection technology which may distinguish the variation of the photoacousic signal by carbon monoxide or smoke. Prototype of this detection system was designed and a new threshold and trend compound arithmetic was used to judge the occurrence of the fire. Experimental results showed that compound detection of carbon monoxide and smoke by photoacousic effect can be realized by the new detection technology so as to detect fires at the early stage.