Recently, the new "Exploration" laser radar project, which was developed by the Hefei Institute of Material Science of the Chinese Academy of Sciences.
Where does the haze come from, how to drift and dissipate? Knowing these issues can really cure them. Recently, the new "Exploration" laser radar project, which was developed by the Hefei Institute of Material Science of the Chinese Academy of Sciences, passed the comprehensive inspection and acceptance organized by the Ministry of Science and Technology. It is reported that the project has broken the monopoly of developed countries on the core technology of laser radar. It can monitor the distribution of smog in the range of 10 kilometers in high altitude and analyze its composition. It has been observed in several regional networks in China.
Lidar is an advanced technical means to detect smog, but before China did not master the core technology, it could only import from foreign machines. Since 2011, Liu Wenqing, academician of the Chinese Academy of Engineering and director of the Anhui Institute of Optics and Fine Mechanics of the Chinese Academy of Sciences, is the project leader, and the national major scientific instrument and equipment development project "Development and Application Demonstration of Atmospheric Fine Particles and Ozone Space-Time Detection Lidar System" The project started the research and achieved many major breakthroughs in research on radar light sources, transient recorders and radar data applications.
PM2.5 and ozone are the two main components of smog. The atmospheric fine particles and ozone space-time detection laser radar can detect the height distribution and concentration distribution of these two components in real time from the ground to the height of 10 kilometers. “Accurately knowing the composition of the smog, where it comes from, and where it goes, helps to analyze the causes of pollution and accurately formulate strategies for curbing the disease,” said Zhang Tianshu, a project executive.
It is understood that the project has broken the monopoly of the core technology of laser radar in developed countries, successfully realized the localization of the whole machine, and is in the forefront of the international application in product application. At present, in densely populated areas such as Beijing-Tianjin-Hebei, Yangtze River Delta, Pearl River Delta, and Sichuan-Chongqing, large-scale layout has been set up to monitor air quality in real time.