Suspended particulate matter flux measuring device utilizing synchronous polarization and fluorescence

Abstract

The invention discloses a suspended particulate matter flux measuring device utilizing synchronous polarization and fluorescence. The system comprises a light source, a polarizer, an irradiation optical system, a first receiving optical system, a second receiving optical system, a polarization imaging system, a fluorescence camera and an image processing end, wherein light emitted by the light source passes through the polarizer and then generates the incident polarized light, is converted into a sheet light source through an irradiation optical system, irradiates a plurality of suspended particles in a liquid section, the first receiving optical system and the second receiving optical system are arranged at two symmetrical scattering angles, the scattered light of the suspended particulate matter is received and sent to the polarization imaging system and the fluorescence camera so that each suspended particulate matter forms a polarization image point and a fluorescence image point on the polarization imaging system and the fluorescence camera at the same time, flux measurement of multiple suspended particulate matters in a water body section is realized, and the type informationof the suspended particulate matters is determined by utilizing polarization-fluorescence synchronous measurement data of each suspended particulate matters. The system is advantaged in that the system can quickly identify the suspended particulate matters in a water body at high flux.

Description

technical field [0001] The invention relates to the detection of suspended particles, in particular to a suspended particle flux measurement device utilizing synchronous polarization and fluorescence. Background technique [0002] It is an important means of ecological research and environmental monitoring to quickly, accurately and massively obtain information on suspended particulate matter in water bodies, especially to measure their flux. Current methods for estimating suspended particles in water bodies, including weighing, mass or number concentrations, etc., cannot classify and identify suspended particles in water bodies. Optical methods have attracted much attention due to their advantages of high resolution, non-destructive, and non-contact. The traditional optical imaging method uses a complex optical system to simultaneously image multiple particles in the imaging plane, and uses the shape and overall structure to identify and classify the particles; combined wi...

AI Technical Summary

Problems solved by technology

The traditional optical imaging method uses a complex optical system to simultaneously image multiple particles in the imaging plane, and uses the shape and overall structure to identify and classify the particles; combined with the flow sampling technology, the flux information of the particles in the water body can be obtained. The dilemma of mutual restriction between resolution and field of view

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