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Flow field radiation gathering and radiation scattering measurement method based on oil film fluorescence brightness

A technology of fluorescence brightness and measurement method, applied in measurement devices, fluorescence/phosphorescence, material analysis by optical means, etc., can solve the problems of difficult post-processing, high experimental cost, complicated steps, etc., and shorten the time of post-processing , the experimental results are accurate, and the steps are simplified

Active Publication Date: 2020-06-02
HARBIN INST OF TECH AT WEIHAI
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Problems solved by technology

[0006] In view of the above-mentioned existing detection methods, the experimental cost is high, the steps are complicated, the final data is complicated, and the post-processing is difficult.

Method used

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  • Flow field radiation gathering and radiation scattering measurement method based on oil film fluorescence brightness
  • Flow field radiation gathering and radiation scattering measurement method based on oil film fluorescence brightness
  • Flow field radiation gathering and radiation scattering measurement method based on oil film fluorescence brightness

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Embodiment Construction

[0037] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings. Obviously, the described embodiments are only some of the embodiments of the present invention, rather than all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0038] The applicant of the present invention found through research that the field of marine oil spill detection is useful for the research of ultraviolet-induced fluorescence detection of water surface oil spills. This detection method uses ultraviolet light to irradiate the oil spill on the sea surface, and the fluorescent substances in the oil are excited to produce fluorescence. The location and range of the oil spill can be judged th...

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Abstract

The invention discloses a flow field radiation gathering and radiation scattering measurement method based on oil film fluorescence brightness, and the method comprises the following steps: respectively obtaining images of fluorescence generated by silicone oil with fluorescent pigment through ultraviolet irradiation under at least two different known oil film thicknesses above a water body, and analyzing the images to obtain a gray value corresponding to the fluorescence intensity; performing calculating according to the known oil film thickness and the gray value to obtain an oil film thickness-gray value relation; and calculating the fluctuation condition of radiation gathering and radiation scattering of the silicone oil with the fluorescent pigment on the surface of the water body according to the relation between the oil film thickness-gray value and the fluorescent images of the silicone oil shot when the water body is static and disturbed. According to the method, the detectionintuition is enhanced, the cost is low, the amount of data needing to be processed is small, the post-processing steps are simple, and the difficulty is greatly reduced. Quantitative analysis can beconveniently carried out on the fluctuation intensity of surface fluid radiation gathering and radiation scattering, and certain help is provided for summarizing the law of the fluid surface radiationgathering and radiation scattering phenomenon caused by underwater or water surface navigation bodies.

Description

technical field [0001] The invention relates to the field of hydrodynamic analysis, in particular to a method for measuring flow field convergence and divergence based on oil film fluorescence brightness. Background technique [0002] In nature, seawater will produce various fluctuations due to natural factors such as wind, gravity and geological conditions. When an underwater or surface vehicle passes by, a phenomenon of convergence and divergence with obvious texture features will be formed on the water surface (such as kelvin waves and internal wave reflections). The spatial scale of the traces produced by the passing of the flying objects is often very large, so these special flow field characteristics can become an important signal source for judging whether there are underwater or surface moving targets passing by. The detection and tracking has great military significance and practical engineering significance. [0003] Among the existing experimental methods for ex...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/64
CPCG01N21/6402
Inventor 许多王成安高继鹏谭建宇周志权
Owner HARBIN INST OF TECH AT WEIHAI
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