Measurement instrument and measurement method for volatilization characteristics of atmospheric aerosol

Abstract

The invention provides a measurement instrument for the volatilization characteristics of an atmospheric aerosol. The measurement instrument comprises the following successively connected parts: a drying system, a first particle size sorting system, an aerosol volatilization control system, a second particle size sorting system and a particle counting system. Moreover, the invention also provides a measurement method for volatilization characteristics of the atmospheric aerosol. The method uses the measurement instrument for measuring particle size changes and distribution of aerosol particles varied in particle sizes before and after volatilization at different temperatures. Compared with the prior art, the measurement instrument and measurement method for the volatilization characteristics of the atmospheric aerosol in the invention have the advantages of capacity of realizing measurement of the volatilization characteristics of the atmospheric aerosol and measuring the volatilization factors and mixing states of aerosols with different particle sizes at different temperatures, high automation degree, good stability and continuous operability under the condition of unattended operation.

Description

technical field [0001] The invention relates to atmospheric detection equipment, in particular to an atmospheric aerosol volatility characteristic measuring instrument and a measuring method. Background technique [0002] Atmospheric aerosols directly affect the Earth's atmospheric radiation balance by scattering and absorbing radiation. The chemical composition and mixing state of aerosol particles in the atmosphere are very complex, and the optical effects and radiation effects of aerosols are closely related to the chemical composition and mixing state of the particles. [0003] At present, the observation of the volatile characteristics of aerosols has not been carried out in my country's atmospheric environmental academic circles, and the scientific observation experiments on the volatile characteristics of aerosols are not yet perfect. Foreign scientific research institutions have also carried out research and development and testing of aerosol volatility measuring in...

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Problems solved by technology

The disadvantage is that the adsorption device will adsorb a part of the non-volatile particles, which will reduce the passing rate.

Moreover, the

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