A Dissolved Oxygen Measuring Method and Application Based on Fluorescence Quenching Principle
A technology of fluorescence quenching and measurement method, applied in fluorescence/phosphorescence, material excitation analysis, etc., can solve problems such as low stability, interference of fluorescence light intensity, inaccurate measurement results, etc., to improve accuracy, improve accuracy and Stability, make up for the effect of circuit delay
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[0036] figure 1 It is a schematic diagram of the principle of the dissolved oxygen measurement sensor based on the present invention, such as figure 1 As shown, the dissolved oxygen measuring instrument includes an excitation photodiode 1 , a reference photodiode 2 , an oxygen sensitive film 3 , a photodetector 4 , a photoelectric conversion board 5 and a communication control module 6 .
[0037] When measuring, first, place the sensor in the target sea area, control the excitation light diode 1 to emit blue-green light, and the blue-green light reaches the oxygen sensitive film 3, prompting the oxygen sensitive film 3 to react with the dissolved oxygen in the water environment, and Red fluorescence is emitted, and the red fluorescence is transmitted to the photodetector 10, converted into an excitation photoelectric signal by the photoelectric conversion board 5 and transmitted to the communication control module 6, and then transmitted to the data terminal after communicatio...
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