Polarization measurement system of smoke particle Mueller matrix

Abstract

The invention discloses a polarization measurement system of a smoke particle Mueller matrix, which belongs to the field of polarization detection and comprises an emission system, a beam splitting and polarizing system, a polarizing system, a smoke particle simulation system, a beam splitting system, a polarization detection system and a computer data processing system. The emission system, the smoke particle simulation system, the beam splitting system and the polarization analysis system are sequentially arranged on a main light path in the light beam transmission direction, the beam splitting polarization system and the polarization system are arranged on the same impeller, when the impeller rotates to a first position, the beam splitting polarization system is switched to enter the main light path in the light beam transmission direction, and when the impeller rotates to a second position, the polarizing system is switched to enter a main light path in the light beam transmission direction. According to the invention, the operation of adjusting the polarization element for four times in the traditional smog medium Mueller matrix test is replaced by the operation of screwing the impeller into the system for one time, so that the measurement of sixteen groups of Mueller matrixes can be completed, the operation steps are reduced, the error is avoided, and the experiment accuracy is improved.

Description

technical field [0001] The invention relates to the field of polarization detection, in particular to a polarization measurement system of smoke particle Mueller matrix. Background technique [0002] Fuel combustion and exhaust emissions lead to serious air pollution and severe smog. The emergence of smog not only has great harm to people's health, but also affects traffic safety, and even causes meteorological variation. Haze weather has been recognized as disaster weather. Therefore, the research on smoke particles in haze environment has attracted attention. [0003] During the transmission of polarized light, due to the scattering effect of smoke particles, the polarization state will change. This change in polarization state can be represented by a Mueller matrix. When the polarized light is scattered, it also carries the information of the particle. Different smoke particles have different Mueller matrices. The 16 elements of the Mueller matrix include the intens...

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Problems solved by technology

[0006] The purpose of the present invention is to provide a polarization measurement system of the smoke particle Mueller matrix in order to study the Mueller matrix of the smoke particles in order to solve the problems of the existing Mueller matrix measurement system with complicated operation, long time consumption and errors.

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