Real-time on-line monitoring device for multiple gases of farmland
A monitoring device and gas technology, applied in the direction of color/spectral characteristic measurement, etc., can solve problems such as difficult to achieve real-time online monitoring, long sampling time, etc., achieve the effect of eliminating external interference, improving detection sensitivity, and meeting the needs of farmland work
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[0026] In order to make it easy to understand the technical means, creation features, achieved goals and effects of the present invention, the present invention will be further described below with reference to the specific figures.
[0027] like Figure 1-4 As shown, a real-time online monitoring device for various gases in farmland, including superluminescent light emitting diode, diode controller, function generator, spectrometer, off-axis quartz tuning fork enhanced photoacoustic cell, power meter, adder, phase lock Amplifier, data acquisition card and notebook computer, characterized in that: the superluminescent diode is connected to the diode controller through a cable, the function generator is connected to the diode controller through an IEEE488 data cable, the The off-axis quartz tuning fork enhanced photoacoustic cell is provided with two quartz tuning forks, and the two quartz tuning forks are respectively connected with the adder through the preamplifier by wires;...
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