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A Suspended Particle Flux Measurement Device Using Synchronous Polarization and Fluorescence

A suspended particle and flux measurement technology, which is applied in the detection field of suspended particles, can solve the problems of mutual restriction of resolution and field of view, and achieve the effect of increasing information dimension, enriching characteristic data, and rapid measurement

Active Publication Date: 2022-06-03
SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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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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  • A Suspended Particle Flux Measurement Device Using Synchronous Polarization and Fluorescence
  • A Suspended Particle Flux Measurement Device Using Synchronous Polarization and Fluorescence

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Embodiment Construction

[0021] Embodiments of the present invention will be described in detail below. It should be emphasized that the following description is exemplary only, and is not intended to limit the scope of the invention and its application.

[0022] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element. In addition, the connection can be used for both the fixing function and the coupling or communication function.

[0023] It is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top" , "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orientation or positional relat...

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Abstract

A suspended particle flux measurement device using synchronous polarization and fluorescence, including a light source, a polarizer, an illumination optical system, a first receiving optical system, a second receiving optical system, a polarization imaging system, a fluorescence camera, and an image processing terminal, the light source The emitted light passes through the polarizer to generate incident polarized light, which is converted into a sheet light source through the illumination optical system, and illuminates multiple suspended particles in a liquid section. The first and second receiving optical systems are set at two symmetrical scattering angles , receive the scattered light of the suspended particles and send them to the polarization imaging system and the fluorescence camera respectively, so that each suspended particle forms a polarization image point and a fluorescence image point on the polarization imaging system and the fluorescence camera respectively, realizing multiple For the measurement of the flux of suspended particulate matter, the polarization-fluorescence synchronous measurement data of each suspended particulate matter is used to determine the type information of the suspended particulate matter. The device can quickly and high-throughput identify suspended particulate matter in water.

Description

technical field [0001] The invention relates to the detection of suspended particles, in particular to a suspended particle flux measuring device using synchronous polarization and fluorescence. Background technique [0002] Obtaining information about suspended particulate matter in water quickly, accurately and in large quantities, especially measuring their flux, is an important means of ecological research and environmental monitoring. Current methods for estimating suspended particles in water, including weighing, mass or number concentration, etc., cannot classify and identify suspended particles in water. Optical methods have attracted much attention due to their advantages of high resolution, no damage, and non-contact. Traditional optical imaging methods use complex optical systems to simultaneously image multiple particles in the imaging plane, and use shape, overall structure, etc. to identify and classify particles; combined with flow sampling technology, the fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N15/06
CPCG01N15/06G01N2015/0693Y02A90/30
Inventor 廖然马辉李嘉晋邓寒波
Owner SHENZHEN GRADUATE SCHOOL TSINGHUA UNIV
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