Ultraviolet imaging telemetry device and method for multi-component pollution source pollution gas column concentration

Abstract

The invention discloses an ultraviolet imaging remote measuring method and apparatus for the concentration of a multi-component pollution source pollution gas cylinder. The apparatus comprises a measuring system and a calibration system, wherein the measuring system comprises a receiving telescope and a CCD detector, a rotating wheel is arranged between the receiving telescope and the CCD detector, the rotating wheel is provided with a background optical filter and a target gas optical filter, and the rotating wheel is also connected with a first motor; the calibration system comprises a small-field double-telescope and a spectrograph, the small-field double-telescope is connected with the spectrograph by virtue of an optical fiber, the small-field double-telescope is arranged on a rotating table, and the rotating table is connected with a second motor; and the optical intensity of a target gas is parsed by utilizing the Lambert-Beer absorbance law, the measuring system is calibrated in combination with the real-time cylinder concentration of the calibration system, and the spatial two-dimensional visual distribution of the target gas cylinder concentration can be obtained by utilizing a linear least square fitting method. The sun scattering light is adopted as a light source to perform the long-distance ultraviolet non-dispersive imaging, so that the time resolution and the spatial resolution are high.

Description

Technical field [0001] The invention belongs to the field of optical remote sensing measurement, and specifically is an ultraviolet imaging remote measurement device and method for the concentration of a multi-component pollution source polluted gas column. Background technique [0002] The extensive use of fossil fuels has caused a large amount of harmful substances such as smoke, nitrogen oxides, sulfur dioxide, and volatile organic compounds to be discharged into the atmosphere. These pollutant components can be transformed into each other and generate new substances through atmospheric chemical processes, which makes environmental problems increasingly serious. Therefore, a measurement method with high time resolution, high spatial resolution, and visualization has become necessary, which will help to understand the chemical kinetic process of the mutual transformation of various pollutant components. Provide micro-kinetic data for atmospheric chemistry research, so that env...

AI Technical Summary

Problems solved by technology

However, these instruments are costly and have small temporal and spatial resolutions, which are not suitable for the microdynamics research of polluted gases.

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