Open optical path tunable semiconductor laser modulation spectroscopy technology, using 1.573μm DFB laser as light source, using wavelength modulation technology and laser beam splitting technology, by detecting a single absorption line of carbon dioxide near 1.573μm, to achieve two different levels Fast online monitoring of carbon dioxide gas concentration. Combining the length and characteristic velocity of the Moning-Aubov measured by the large-aperture scintillator that has just been developed in recent years, it is possible to measure the flux of carbon dioxide greenhouse gases in the optical path range of a few hundred meters.

Using the open optical path tunable semiconductor laser modulation spectroscopy technology and carbon dioxide detection technology, using a combination of wavelength modulation and spectroscopic technology, the carbon dioxide gas concentration value in the optical path range of more than 700 meters at two different heights is measured, combined with large-diameter flicker The length and characteristic velocity of the Moning-Aubhof measured by the instrument finally invert the carbon dioxide greenhouse gas flux, making it possible to calculate the flux of trace gas in a large area over a large area. Further correct and objective evaluation of various terrestrial ecosystems provides a basis for the concentration of major greenhouse gases in the atmosphere.

The carbon dioxide detection technology uses a carbon dioxide gas detector. The carbon dioxide detector accurately detects carbon dioxide. The infrared imported carbon dioxide sensor is used to stabilize the signal. The carbon dioxide detector has the advantages of high sensitivity and precision. The carbon dioxide controller uses the world's advanced microcomputer technology, digital sensor technology, automatic control technology, with digital tube display and keyboard operation, can automatically monitor and display indoor carbon dioxide, temperature, humidity data, through the keyboard can set carbon dioxide, temperature The upper and lower limits of humidity automatically alarm when carbon dioxide, temperature and humidity exceed the set range, with a communication connection.

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