METHOD FOR QUANTITATIVE ASSESSMENT OF MASKING ABILITY OF AEROSOL AND INSTALLATION FOR ITS IMPLEMENTATION Russian patent published in 2024 - IPC G01N21/21 

FIELD: instrumentation.

SUBSTANCE: concerns a method for quantitative assessment of the masking ability of an aerosol. When implementing the method, the light flux from the radiation source is converted using a lens system and the first diffraction grating-polarizer into a plane-polarized isotropic light flux and directed through the aerosol under study. The light flux passing through the aerosol is measured using a receiving device made in the form of a movable eyepiece equipped with a second diffraction grating-polarizer with receiving sectors, one of which is open, and the angle at the apex of the sectors is a multiple of 360°, and the polarization direction of the second diffraction grating-polarizer coincides with the central radius of the open sector. The luminous flux is measured with each rotation of the receiving device until the receiving device completes a full rotation. Based on the measured values of the luminous flux, the probabilities of hiding space by aerosol particles and distorting the object and background as a result of reflection and refraction of plane-polarized light on aerosol particles are determined.

EFFECT: increasing the objectivity of assessing the masking ability of an aerosol.

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