Wide-field transmission dynamic liquid component analysis method and device

Abstract

The invention relates to a wide-field transmission dynamic liquid component analysis method and device, a container tube filled with dynamic liquid to be detected is tightly attached to a crystal, andthe components of the dynamic liquid to be detected are detected based on the principle of total reflection of a light field. The light source emits parallel collimated light beams to the holographicphase plate through the shaping module, the parallel collimated light beams are modulated to the same straight line through phases, and the straight line has multiple focusing light spots. The groupof light fields are attenuated and totally reflected on the surface of the liquid at a certain depth in the crystal and the container filled with the dynamic liquid solution; the reflected light fieldis received by the detection module, and the reflected light field is analyzed and processed by using the optical detection signal amplification method creatively provided by the invention and combined with the system, so that required relevant data information and real-time change information of the dynamic liquid can be obtained. The system and the method have the characteristics of simple method, indirect contact, high sensitivity, good real-time performance, high reliability, large information amount, easy function expansion and the like.

Description

technical field [0001] The invention relates to a wide-field transmission dynamic liquid component analysis method and device, belonging to the technical field of trace substance analysis. Background technique [0002] Fluid is a substance that can flow, and it is an object that is continuously deformed by any small shear force. Fluid is the general term for liquids and gases. Fluid composition detection requirements widely exist in many fields such as environmental analysis, resource exploration, food safety, life sciences, medical treatment, industrial process control, national defense security, etc., and the sensitivity requirements for fluid composition detection in these fields are also getting higher and higher. Water substance analysis and detection technology is a representative practical application case of fluid composition detection. Water resources are one of the indispensable and irreplaceable important resources for the development of human society. With the ...

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Problems solved by technology

[0003] In the prior art, there are fluid composition detection technologies, such as water quality analyzers, and many companies at home and abroad have market circulation detection technology products, such as American Hach Company, Japan Shimadzu Company, Austrian Energy Company, Domestic Concentrating Company, Pioneer companies, etc., the existing technology can measure the fluid composition, but there are some essential deficiencies: 1) The detection method is complicated, and the sampling water quality analyzer needs to pretreat the water to be tested, and then use the chemical or physical detection principle to analyze, And it needs to replace reagents and other processes, which requires high requirements for operators, inconvenient use, complex methods, and the possibility of secondary environmental pollution; There is a useful information cascading method effect, so the sensitivity of analysis and detection is limited, and it is easy to receive interference, which affects the reliability of detection technology; 3) The structure is complex, difficult to integrate, and difficult to expand functions

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