Water Hardness Monitoring Method Based on Brillouin Scattering
A technology of Brillouin scattering and water hardness, applied in the field of scattering spectroscopy detection, can solve the problems of complex operation and strong subjectivity, and achieve the effect of simple operation, strong implementation and low cost
Active Publication Date: 2017-02-22
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology
Traditionally, indicator titration is generally used to detect water hardness. The disadvantages of this method are complex operation, strong subjectivity and randomness of detection sampling.
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[0028] The present invention will be further described according to accompanying drawing now. see figure 1 and figure 2 , a water hardness monitoring method based on Brillouin scattering, including two stages of data storage and water monitoring:
[0029] In the data storage stage, a data storage device for Brillouin scattering signals of water with different hardnesses is provided, see figure 1 , the device includes a first laser 1, a first power meter 4, a second power meter 9 and a first ICCD 8, the first ICCD 8 is docked with the first telephoto lens 7, the first laser 1, the first The power meter 4, the second power meter 9 and the first ICCD 8 are all connected to the first computer 10 through data lines, and the first beam splitter 2 and the glass tank 3 are arranged in sequence from the entrance of the first laser 1 to the first power meter 4 , the angle α between the axis of the glass tank 3 and the laser optical axis is 5°; one side of the first beam splitter 2 i...
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The invention discloses a water hardness monitoring method based on Brillouin scattering, which includes two stages of data storage and water area monitoring. In the data storage stage, a data storage device for Brillouin scattering signals of water with different hardnesses is provided, and the Soft water, slightly hard water, hard water and extremely hard water are respectively added into the long cylindrical glass tank, and the incident laser light is excited in the long cylindrical glass tank and then Brillouin scattering signals are excited. The first computer analyzes the collected back Brillouin scattering signals Analyze and process the laser power recorded by the first and second power meters, and store relevant data. The monitoring of the water area is to monitor the water hardness in a wide range of water areas according to the stored signal data; when the laser beam propagates in a large area of water area, a back Brillouin scattering signal is excited, and the second computer analyzes the collected back Brillouin scattering signal And compared with the previously stored Brillouin scattering signal data, the hardness of the detected water area can be obtained. The invention realizes the detection requirement of large-scale water area.
Description
technical field [0001] The invention relates to a scattering spectroscopy detection technology, in particular to a water hardness monitoring method based on Brillouin scattering. Background technique [0002] Water is an excellent solvent, which can effectively remove dirt and impurities. When water and carbon dioxide combine to form a small amount of carbonic acid, the dissolution effect of water will be better. When water flows into land and rocks, it dissolves small amounts of mineral components, two of which are the most common, calcium and magnesium, which make the water hard. The so-called "hard water" and "soft water" mainly refer to the content of calcium carbonate and magnesium carbonate, expressed in "mg calcium carbonate / liter water" or "ppm", which is called water hardness. The four levels of detection are carried out, and the soft water of 50ppm, the slightly hard water of 80ppm, the hard water of 150ppm, and the extremely hard water of 190ppm are the detection...
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IPC IPC(8): G01N21/49
Inventor 史久林王泓鹏何兴道钱佳成武浩鹏严峰
Owner NANCHANG HANGKONG UNIVERSITY