Atmospheric component hyper-spectral mobile measurement system
A mobile measurement system and hyperspectral technology, applied in the field of mobile automatic measurement systems, can solve the problems of long distance between the transmitter and the receiver and the impossibility of mobile measurement
Pending Publication Date: 2022-03-15
FUDAN UNIV +1
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Problems solved by technology
For LP-DOAS devices, although sampling is not required, mobile measurements cannot be achieved due to the distance between the transmitter and receiver
Method used
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[0019] The above-mentioned principle diagram of the present invention is provided by the present invention. figure 1 As shown, the measuring optical path system consisting of a light source and a set of mirrors, and a detection and analysis system composed of a spectrometer and a computer; wherein the measuring optical path system includes a light source 4, a primary mirror 7, and 5 secondary mirrors; primary mirror 7 Set on one end (left end) of the optical path, the main lens is divided into left half and right half of the horizontal spindle.
[0020] The third mirror 5, the fourth mirror 6, and the fifth mirror 8 are disposed at one end of the main mirror 7 of the optical path, wherein the light source 4, the third mirror 5 is disposed on the left side of the main mirror 7-terminal spindle ( figure 1 The lower side is shown as the lower side), the fourth mirror 6 is disposed on the left side of the main mirror 7-terminal spindle, and at the left position of the primary mirror, ...
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The invention belongs to the technical field of air environment quality monitoring, and particularly relates to an atmospheric component hyper-spectral mobile measurement system. The system comprises a measuring light path system consisting of a light source mounted on a bottom plate and a group of reflectors, and a detection and analysis system consisting of a spectrograph and a computer. The measuring light path system forms a semi-closed cavity, the front end and the rear end of the cavity are not closed, air can circulate front and back, and the air naturally enters the measuring light path cavity through forward movement of a vehicle and flows through a measuring light path to measure atmospheric pollution components in the air. And the spectrograph, a power supply of the equipment and the like form a cavity which is arranged beside the measuring light path cavity in parallel. The system disclosed by the invention can complete measurement work without air exhaust sampling in a mobile working state, and compared with the prior art, an air exhaust sampling part is omitted.
Description
Technical field [0001] The present invention belongs to the field of air environmental quality monitoring, and therefore involves a mobile automatic measurement system for environmental air quality. Background technique [0002] The atmospheric pollution ingredients in the ambient air mainly include sulfur dioxide, nitrogen dioxide, ozone, nitric oxide and ammonia. The automatic monitoring method of atmospheric pollution ingredients in the ambient air is mainly divided into fixed-point measurements and movement measurements. In the fixed-point monitoring mode, the monitoring device is generally mounted in a station with an air conditioning system. Under the action of the pump, the outdoor air enters the chamber by the sampling tube, and then extracted by each monitoring device, respectively. Detection analysis. In the mobile mode of operation, the monitoring device is typically installed in the motor vehicle, using the vehicle's operation to move monitoring, when the measurement ...
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IPC IPC(8): G01N21/31G01N21/01
CPCG01N21/31G01N21/01G01N2021/0106Y02A90/10
Inventor 周斌代文豪
Owner FUDAN UNIV