针对空气动力学粒径和光学等效粒径之间存在的差异,本文提出对空气动力学粒径进行光学修正的方法。该方法根据黑碳仪(AE)、浊度计(IN)和光学粒子计数器(OPC)的测量结果,对气溶胶折射率进行反演,再利用反演的折射率结合黑碳仪和浊度计的测量结果对厦门地区空气动力学粒度仪(3321)测量的空气动力学粒径数据进行光学修正,与光学粒子计数器测量结果对比表明修正的结果是合理的。最后还对引起空气动力学粒径和光学等效粒径之间差异的原因进行了分析。

In order to analyze the difference of optics sizing and aerodynamic sizing of aerosol particle, a method for revising the aerodynamic sizing using optics method is proposed. The method uses the measurement results by an Aethalometer (AE), an Optical Particle Counter (OPC) and an Integrating Nephelometer(IN)to revise the aerodynamic sizing of aerosol particle measured by 3321 in Xiamen. The comparisons with other instruments show that the method is satisfactory. Lastly, the reason for difference of optics sizing and aerodynamic sizing is analyzed.