酒精浓度超标报警器设计与分析

酒精浓度超标报警器是交警判定驾驶员是否饮酒的重要设备。介绍了一种酒精浓度超标报警器的设计方法,利用MQ-3酒精传感器设计了一款安装在汽车驾驶室内的酒精浓度超标报警器,并对其结构特点、工作原理及其调试方法进行了详细的分析介绍。该系统利用LM393比较器和传感器对人体酒精浓度信号进行检测,判断司机是否酒后驾车,并使酒后驾车者不能启动汽车。因此相对其它类型酒精浓度检测装置具有更高的实用价值。

Design and analysis of overproof alarm

Overproof alarm is a vital device to judge by traffic police whether a driver is drunk.This paper introduces a method to design an overproof alarm and uses MQ-3 alcohol sensor to design an overproof alarm installed in the driving room,and gives a detailed discussion of the structure,working principle and debugging method.The overproof alarm system uses LM393 comparator and sensor to detect the human alcohol concentration signal to judge whether the driver is drunk or not and prohibit starting car by the drunk.So this overproof alarm has a higher practical value than other alcohol concentration detector.