摘要
为解决低效费时的人工酒驾检测问题,实现快速非接触式酒驾车辆筛查,设计了一种基于可调谐激光器测量方法对空气中酒精气体质量浓度进行检测的非接触式酒驾测量系统。采用3.345μm波段的酒精特征吸收峰作为特征数据并结合二次谐波算法进行气体测量,试验结果显示:酒精气体质量浓度与二次谐波积分数值具有较好的相关度,R^(2)=0.971;可调谐激光器二次谐波积分面积方法对酒精气体的检测限度达到50 mg/100 mL。采用可调谐激光器测量二次谐波积分方法对酒精气体检测具有良好效果,为酒驾检测的实际应用提供了理论支撑。
In order to solve the inefficient and time-consuming detection problem of artificial drunk driving and realize the rapid non-contact screening of drunk driving, this paper designed a set of non-contact measurement system based on the tunable laser measurement method to detect the concentration of alcohol gas in the air. The alcohol characteristic absorption peak of 3.345 μm band was used as the characteristic data and the second harmonic algorithm was used to measure the gas. The experimental results showed that the alcohol gas concentration had a good correlation with the second harmonic integral value R^(2)=0.971. At the same time, it is verified that the detection limit of alcohol gas by the second harmonic integral area method of tunable laser can reach 50 mg/100 mL. It is proved that the method of using tunable laser to measure the second harmonic integration has a good effect on alcohol gas detection and provides theoretical support for the practical application of drunk driving detection.
作者
赵雷红
潘冬宁
李英杰
宋源清
田秀兵
李玉
Zhao Leihong;Pan Dongning;Li Yingjie;Song Yuanqing;Tian Xiubing;Li Yu(Qingdao Academy for Opto-Electronics Engineering,Qingdao,Shandong 2661ll,China)
出处
《应用激光》
CSCD
北大核心
2022年第10期135-139,共5页
Applied Laser
基金
中国科学院国防科技创新重点部署项目(ZDRW-XH-2019-4)。
