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A detecting device and method for mass concentrations of aerosol granules

An aerosol particle and detection method technology, which is applied in the direction of measuring devices, particle suspension analysis, suspension and porous material analysis, etc., can solve the problems of immature monitoring technology for the spatial distribution of particle mass concentration, and achieve the effect of reducing the cost of equipment use

Inactive Publication Date: 2017-06-20
XIAN UNIV OF TECH
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Problems solved by technology

[0003] The purpose of the present invention is to provide a detection device for the mass concentration of aerosol particles, which solves the problem that the current spatial distribution monitoring technology of particle mass concentration is immature

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  • A detecting device and method for mass concentrations of aerosol granules
  • A detecting device and method for mass concentrations of aerosol granules
  • A detecting device and method for mass concentrations of aerosol granules

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Embodiment Construction

[0043] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0044] The detection device of the mass concentration of aerosol particulate matter of the present invention has a structure such as figure 1 As shown, the laser 1 emits laser pulses of multiple bands, and enters the atmosphere 4 through the collimator beam expander system 2 and the mirror 3 in turn, and the generated laser scattering echo signal is received by the telescope 5, and the telescope 5 communicates with the beam splitter through the optical fiber 6 The system 7 is connected, and the spectroscopic system 7 is connected with a photodetector 8 , a data acquisition system 9 and a computer 10 in sequence.

[0045] The method for detecting the mass concentration of aerosol particulate matter by using the above detection device specifically includes the following steps:

[0046] Step 1: The laser 1 emits laser pulses in three bands of 3...

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Abstract

A detecting device and method for mass concentrations of aerosol granules are disclosed. The device includes a laser emitting laser pulses of a plurality of wavebands. The laser pulses enter air through a collimation and beam expanding system and a reflector. Laser light scattering echo signals are received by a telescope, are introduced through optical fibers into a beam splitting system, and are then subjected to signal conversion through a photoelectric detector. A data collecting system performs data collecting on the signals. Finally, data processing is performed in a computer to invert an aerosol granule mass concentration. The device and the method are based on novel theories and novel methods of granule mass concentration distribution detection by multi-waveband laser radar remote sensing, can achieve high-spatial-resolution detection of granule mass concentrations in a range of a plurality of kilometers, effectively overcome a difficulty that present granule mass concentration spatial distribution monitoring techniques are not mature, and provide air scientific research, space environment monitoring and executive decisions with scientific bases and methodologies.

Description

technical field [0001] The invention belongs to the field of laser active remote sensing detection, and in particular relates to a detection device for the mass concentration of aerosol particles, and also relates to a detection method for the mass concentration of the aerosol particles. Background technique [0002] Only by grasping the mass concentration level of atmospheric particulate matter, systematically monitoring the source of aerosols and the regional transmission of pollutants, and clarifying the quantitative contribution of emissions, can we formulate reasonable and effective key prevention and control measures. At present, direct measurement and indirect equivalent measurement methods are mainly used to detect the mass concentration of atmospheric particulate matter, including sampling weighing method, β-ray method, TEOM particulate matter quality monitor, etc. These measurements are basically limited to point measurements or spatial grid distribution measuremen...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N15/06
CPCG01N15/06G01N15/075
Inventor 何廷尧饶志敏华灯鑫
Owner XIAN UNIV OF TECH
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