A device and method for measuring oil film thickness based on laser-induced fluorescence imaging
A technology of laser-induced fluorescence and oil film thickness, which is applied in measurement devices, optical devices, instruments, etc., to achieve the effect of simple calculation formula, small error and high degree of automation
Active Publication Date: 2022-03-08
OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI
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[0005] In order to solve the problems existing in the measurement of oil film thickness in the prior art, the present invention provides a method and device for measuring oil film thickness based on laser-induced fluorescence imaging, which can obtain the thickness of the oil film on the water surface at different distances, and the measured thickness range is wide
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[0021] In order to facilitate the understanding of the present invention, the present invention will be described in more detail below in conjunction with the accompanying drawings and specific embodiments. Preferred embodiments of the invention are shown in the accompanying drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described in this specification. On the contrary, these embodiments are provided to make the understanding of the disclosure of the present invention more thorough and comprehensive.
[0022] The first embodiment provided by the present invention is: an oil film thickness measurement device based on laser-induced fluorescence imaging, the structure of which is as follows figure 1 As shown, it mainly includes: a laser 1 , a laser control switch 2 , a bandpass filter 7 , a CCD detector 8 , an imaging lens 9 , a rotary translation stage and a rotary translation stage controller 10 .
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Abstract
The invention belongs to the field of water quality monitoring, and relates to an oil film thickness measuring device and method. The device includes: an excitation light source system, an optical path detection system, and a data acquisition and processing system; the excitation light source system is fixed above the sea surface, irradiates the sea surface vertically, and is used to excite the oil film to emit fluorescence; the pipeline detection system is fixed above the sea surface On the rotary displacement platform, it is used to detect the fluorescent signal of the oil film, and transmit the fluorescent spot data to the data acquisition and processing system; the data acquisition and processing system is used to receive the fluorescent spot data, and perform processing and calculation to obtain the thickness of the oil film on the sea surface . Compared with the prior art, the present invention has the beneficial effects of: using the principle of fluorescence imaging, by measuring the imaging position of the laser spot on the CCD detector on the upper and lower surfaces of the oil film, using trigonometric functions and geometric relations to calculate the distance between the upper and lower surfaces The distance is the thickness of the oil film, the calculation formula is simple, the oil film thickness range is large, the error is small, and the accuracy is high; the device principle and structure are simple, low cost, easy to use and operate, and high in automation.
Description
technical field [0001] The invention belongs to the field of water quality monitoring, and relates to an oil film thickness measuring device and method. Background technique [0002] Marine oil spill pollution has become the main source of marine pollution. The amount of oil spill is a key parameter in the assessment of marine oil spill accidents, and the oil film thickness is one of the necessary parameters for estimating the amount of oil spill. Accurate measurement of oil film thickness can provide reasonable and effective measures for oil spill control. It can also provide a technical basis for oil layer expansion dynamics and marine environmental science and technology, which is of great significance to marine environmental monitoring and restoration. [0003] The amount of oil spilled is of great significance to the treatment of oil spill accidents. The oil spill volume can be estimated by obtaining the oil spill area and oil spill thickness. Therefore, by obtaining ...
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IPC IPC(8): G01B11/06
CPCG01B11/0658
Inventor 张丽王阳孔祥峰刘凤庆王婧茹郭翠莲王昭玉
Owner OCEANOGRAPHIC INSTR RES INST SHANDONG ACAD OF SCI