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    Ultraviolet fluorescence three-signal water quality sensor taking single UV-LED as light source and application thereof (English)

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    2015
    • Patent  /  Electronic Resource

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    The invention discloses an ultraviolet fluorescence three-signal water quality sensor taking a single UV-LED as a light source and an application thereof and belongs to the fields of environmental monitoring and water treatment. The ultraviolet fluorescence three-signal water quality sensor comprises a light path part and a signal control processing part, wherein the light path part comprises one UV-LED, a sample tank, an ultraviolet probe, a fluorescent probe A and a fluorescent probe B; and the signal control processing part comprises a power supply module, a signal amplifier A, a signal amplifier B, a signal amplifier C, an analog-digital converter and a micro processor. The ultraviolet fluorescence three-signal water quality sensor has the advantages that no chemical reagent is consumed, real-time monitoring on change of overall concentration of dissolved organic matters in water can be realized, and real-time change of concentration of a protein or humus fluorescent component can be reflected, so that the ultraviolet fluorescence three-signal water quality sensor can be used for online predicting disinfection byproduct formation potential and degradation degree of micropollutants in an advanced oxidation process, and a flexible, rapid, efficient, economic, simple and informative online monitoring device is provided for water treatment.

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