摘要
提出基于气敏传感器TGS813的家用可燃气体泄漏报警通风装置的设计方案。该设计的系统利用TGS813对可燃性气体进行监测,当气体浓度超标时,传感器输出的电压信号将大于设定电压,比较器比较之后正向输出,经过功率放大,最后驱动音响报警电路及排气装置。该设计具有线路简单、成本低、操作方便等优点。
A design scheme of home ventilation combustible gas leak alarm device based on gas sensor TGS813 is pro- posed. The system monitors combustible gas using TGS813,if the intensity of gas exceed prescribed threshold, comparing element should output a positive signal,the signal is magnified to drive audio alarm device and ventilating equipment. The design has simple lines, low cost, convenient operation and so on.
出处
《现代电子技术》
2009年第24期177-179,共3页
Modern Electronics Technique
