Instrument for measuring moisture absorption characteristic and body angle scattering coefficient of atmospheric aerosol
An atmospheric aerosol and scattering coefficient technology, applied in the measurement of scattering characteristics, climate sustainability, ICT adaptation, etc., can solve the problem of no aerosol scattering coefficient measuring instrument, etc., achieve significant economic and social benefits, and high stability , the effect of long service life
Active Publication Date: 2013-12-25
HEBEI SAILHERO ENVIRONMENTAL PROTECTION HIGH TECH
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Problems solved by technology
At present, domestic aerosol scattering coefficient monitoring instruments only measure part of the scattering coefficient of the aerosol, such as the back scattering coefficient, the total scattering coefficient or the forward scattering coefficient. The scattering coefficient is measured at the same time as the body angle scattering coefficient
In addition, aerosols ha...
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[0017] The invention consists of a sampler, a water vapor generator, an air supply device and a detector. The sampler continuously extracts ambient air containing aerosols to the detector for detection, and automatically adjusts the humidity of the sample gas; the water vapor generator provides water vapor for aerosol humidification, and the air supply device provides dry and clean air for aerosol dehydration ; The detector detects the sample gas.
[0018] As shown in the figure, the sampler includes a sampling head 1, a sampling tube 2, a permeation drying tube 4, an isokinetic flow adapter 5, a direct detection tube 7, a humidifying tube 8 and a plurality of temperature and humidity sensors. The sampling head 1 is connected with the sampling tube 2 and the permeation drying tube 4 in turn, and the constant velocity airflow adapter 5 is installed at the lower end of the permeation drying tube 4, and the constant velocity airflow adapter 5 is respectively connected with the hu...
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The invention discloses an instrument for measuring the moisture absorption characteristic and the body angle scattering coefficient of an atmospheric aerosol, which belongs to the technical field of atmospheric monitoring and meteorological monitoring equipment and is used for monitoring gas and aerosols in the environment. According to the technical scheme, the instrument consists of a sampler, a water vapor generator, a gas supply device and a detector, wherein gas enters a humidification tube and a direct detection tube respectively through the sampler; after gas entering the humidification tube is humidified, the gas is charged into the detector and is used for measuring the light scattering coefficient of the aerosol; the detector drives a light blocking sheet to rotate according to a set program through a stepping motor, and then light emitted from a light source at a certain angle is blocked, so that the body angle scattering coefficient can be detected; the water vapor generator and the gas supply device can provide different detection humidity. The instrument can be used for continuously and automatically measuring optical characteristics such as the body angle scattering coefficient of the aerosol by simulating different humidity conditions, is applicable to monitoring of environment air quality, observation of meteorological conditions, research on climatic variation and research on the optical characteristics of the aerosol, and has remarkable economic and social benefits.
Description
technical field [0001] The invention relates to an instrument for real-time automatic monitoring of the body angle scattering coefficient of atmospheric aerosol before and after moisture absorption, and belongs to the field of environmental monitoring and meteorological monitoring equipment. Background technique [0002] Global warming has had a major impact on the earth environment on which we live, and its extensiveness and complexity have attracted the attention of countries all over the world. There are many factors that cause global change or climate change, and these factors of different types and different directions of change will have an impact on the earth's radiation balance. The warming of the earth mainly depends on the solar radiation entering the atmosphere, and part of the solar radiation entering the atmosphere is scattered into space. Monitoring the amount of backscattered solar radiation is of great significance for studying changes in the Earth's radiati...
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Login to view more IPC IPC(8): G01N21/49
CPCY02A90/10
Inventor 杨建虎崔延青要海东刘泽吴光辉孙程
Owner HEBEI SAILHERO ENVIRONMENTAL PROTECTION HIGH TECH
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