摘要
随着我国水资源污染日趋严重,建立包括水体表面CO_2浓度检测在内的水生态环境感知系统,对水生态环境的保护具有重大意义。目前常用的检测方法有电化学法、气相色谱法等,但这些检测方法精度不高、易受干扰、使用寿命短,无法满足复杂环境下检测要求。文中设计了基于非分散红外(NDIR)原理的CO_2浓度检测系统,根据修正的Beer-Lambert定律对该系统进行校准。通过对系统功能和性能进行测试表明,所设计的系统与传统方式相比,提高了检测效率和精度。
In recent years, Pollution of water in China is serious, it is of great significance to establish a water eco -environmental sensing system, which includes the detection of CO2 concentration on the surface of the water body, for the protection of aquatic ecological environment. Current detection modes are electrochemical method, gas chromatography, etc. But the accuracy of these detection methods is not high, and these methods with short life are susceptible to interference, cannot meet the detection requirements in complex environment. So in this paper, we design a signed CO2 concentration detection system based on infrared spectroscopy - absorption. Finally, we calibrate the desystem according to modified Beer -Lambert law. Finally, the system function and performance test show that the design system and the traditional method, improve the efficiency and accuracy of detection.
出处
《电子科技》
2017年第9期53-55,59,共4页
Electronic Science and Technology
