Particle measuring device for determining the particle mass concentration in aerosols with different properties and method for determining the particle mass concentration in aerosols with different properties

摘要

A particle measuring device (1) for determining the particle mass concentration in aerosols with different properties has an aerosol photometer (2), by means of which a photometer reading dependent on the particle mass concentration in the aerosol can be measured, and an evaluation unit (9) in the photometer readings measured by the aerosol photometer (2) In order to provide a particle measuring device or a corresponding method available for determining the particle mass concentration mobile, eg in a vehicle, or in different aerosol properties in different regions, it is proposed that in each case a calibration factor is stored in a memory (17) of the evaluation unit (9) for different aerosols, that the particle measuring device (1) is a single particle counting photometer (10 ), by means of which the particle size distribution of aerosols can be detected and entered into the evaluation unit (9) of the particle measuring device (1) that in the evaluation unit (9) currently from the single particle counting photometer (10) detected particle size distribution in the memory (17) of the Evaluation unit (9) stored particle size distributions of the stored calibration factors associated with different aerosols is comparable, and that by means of the evaluation unit (9) for determining the particle mass concentration of the currently measured aerosol, the stored calibration factor is selectable