MEASURING METHOD OF CONCENTRATION OF AEROSOL PARTICLES, AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2015 - IPC G01N15/02 

FIELD: measurement equipment.

SUBSTANCE: proposed method allows measurement of distribution as to sizes and concentration of solid and liquid particles of aerosol at the interval of particle sizes: from 0.8 mcm to 2 mcm, from 2 mcm to 5 mcm, from 5 mcm to 10 mcm and more than 10 mcm by means of semiconductor conductometric sensors as per change of conductivity. At application of the proposed method for measuring concentration of aerosol particles in real time and the device for its implementation, which involves sampling from environment, distribution as to dispersion of the test flow of aerosol as to the corresponding chambers and measurement of aerosol concentration in each chamber, measurements are made by means of semiconductor conductometric sensors as per change of their conductivity after pre-heating, for that purpose, pre-calibration of sensors as per their conductivity on atmospheric air and on air containing aerosol with known concentration and dispersion, which is accepted as constant up to the end of measurements, with that, calibration is performed for each sensor, then, considering calibration, values of conductivities as per the specified algorithm are recalculated in concentration.

EFFECT: reduction of cost of measurement and consumption of energy, and in the part of the device - reduction of its mass and dimensions characteristics.

4 cl, 1 dwg