Radar System Monitors Urban Pollution Sources Green Laser Pointer
With 5 radars, you can comprehensively monitor the air conditions in Dalian. You can track the source of pollution and grasp the spread of pollutants. The reporter learned from Dalian University of Technology on April 27 that, as one of the earliest researchers to carry out the research of Satoshi atmospheric lidar technology, Mei Liang, an associate professor in the School of Optoelectronic Engineering and Instrument Science, has made important progress in the field of atmospheric environment monitoring. At present, Mei Liang has published 4 SCI papers in the optical journal "Optical Letters" and "Optical Letters", and has developed space-time distribution detection of atmospheric particulates. Identification of atmospheric particulate matter. Atmospheric NO2 concentration distribution detection and portable Sachs green laser pointer radar system.
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Lidar is an active green laser pointer optical remote sensing detection technology. Its spatial resolution. It has unique advantages in measurement sensitivity, anti-interference ability, and large-scale actual monitoring, etc., and has been widely used. Traditional pulsed lidar systems are powerful, but they have problems such as high equipment costs and difficult maintenance. Saar lidar technology is a new technology in the field of atmospheric lidar. Compared with traditional pulsed atmospheric lidar technology, it has the advantages of low equipment cost, high cost performance and low maintenance. Its equipment cost is 10% to 20%. This technology has broad application prospects in the field of atmospheric environment monitoring and is expected to be commercially applied. One device can measure the spatial and temporal distribution of particulate matter within a height of 5 kilometers, 5 kilometers to 7 kilometers, and the measurement results of point monitoring instruments can be used to calculate the particle concentration distribution. With 5 sets of equipment, the air condition in Dalian can be fully monitored. And trace to the source of the pollution. It is reported that the research project was funded by the National Key R & D Youth Project and the National Natural Science Foundation of China.
Do not point the laser at others, especially their faces. The laser pointer is very useful, but if used improperly, it can cause serious damage to the eyes. Although a laser of less than 5 milliwatts is unlikely to cause serious injury, looking directly at the beam may cause dark spots or burns on the retina. When flying or operating an airplane, the strong light of the beam can also distract someone's attention. Always pay attention to the beam. Green laser pointers are important engineering gadgets, and they are becoming complementary and well-known in astronomy. The green astronomical laser pointer is not only ideal for pointing out celestial bodies, but also very useful for calibrating telescopes and astrophotography.
2020-01-02 03:49:49
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