Optical sensing total phosphorus detection system and detection method thereof

A detection system and detection method technology, applied in the field of optical sensing, can solve the problems of test accuracy and repetitive interference, system environment sensitivity, etc., and achieve the effects of strong anti-interference ability, high coupling efficiency and good stability

Inactive Publication Date: 2011-11-23
INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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Problems solved by technology

However, this type of method is based on electrochemical reactions and bioelectrochemistry, and is very sensitive to the system environment. Small changes in solution temperature, pH value, and the existence of trace impurity ions will greatly interfere with the accuracy and repeatability of the test.
In the complex and changeable natural water environment, electrochemical and bioelectrochemical detection methods are facing great challenges

Method used

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  • Optical sensing total phosphorus detection system and detection method thereof
  • Optical sensing total phosphorus detection system and detection method thereof
  • Optical sensing total phosphorus detection system and detection method thereof

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Embodiment Construction

[0035] The technical solution of the present invention will be described in detail below with reference to the drawings and embodiments.

[0036] Such as figure 1 As shown, the embodiment of the present invention provides a light sensor total phosphor detection system. The semiconductor laser light source 101 is connected to the light sensor unit 103 through the input fiber 102, and the output fiber 106 is connected to the light sensor unit 103 and the photodetector 107. The light sensor unit 103 includes a sample inlet 104 and a sample outlet 105, which serve as a channel for the solution to be tested to enter the light sensor unit 103. The output end of the photodetector 107 is connected to the digital display module 109 through an electrical connection line 108, the bottom plate 110 provides physical support for the entire system, and all components are integrated on the bottom plate 110. Among them, the input fiber 102 and the output fiber 106 are single-mode fibers; the phot...

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Abstract

The invention relates to the technical field of optical sensing, specifically relates to an optical sensing total phosphorus detection system. The system comprises a bottom plate, a laser light source integrated on the bottom plate, an optical sensing unit, a photodetector and a digital display module. The laser light source is connected with the optical sensing unit through an input optical fiber. The optical sensing unit is connected with the photodetector through an output optical fiber. The photodetector is connected with the digital display module through electrical connection lines. The invention further provides an optical sensing total phosphorus detection method. The system is based on optical fiber sensing principle, has strong anti-interference performance, can rapidly and exactly detect the total phosphorus, and has miniaturized and integrated potential.

Description

Technical field [0001] The present invention relates to the technical field of light sensing, in particular to a light sensing total phosphorus detection system and detection method. Background technique [0002] Water environment monitoring includes the detection of various parameters such as total phosphorus, heavy metals, fluoride, and cyanide. Phosphorus is an important biogenic element in the natural water environment. The content of phosphorus controls the primary production process in the water ecosystem, and it is the determinant of the eutrophication of the water environment. The detection of total phosphorus ion concentration in the water environment is of great significance for protecting the water environment, assessing and controlling the degree of pollution. [0003] Ammonium molybdate spectrophotometry is currently the internationally used method for total phosphorus detection. my country's total phosphorus testing standard (GB 11893-89) also uses this method. Th...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31
Inventor 周静涛刘焕明申华军杨成樾贾锐刘新宇
Owner INST OF MICROELECTRONICS CHINESE ACAD OF SCI
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