Three-dimensional remote sensing detection method for marine water quality

A detection method and remote sensing technology, applied in the field of ocean optical detection to avoid blindness

Active Publication Date: 2015-05-13
NANCHANG HANGKONG UNIVERSITY
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  • Three-dimensional remote sensing detection method for marine water quality
  • Three-dimensional remote sensing detection method for marine water quality
  • Three-dimensional remote sensing detection method for marine water quality

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[0039] Example: figure 2It is the optical path diagram of laser beam convergence when the numerical control rotating shaft of the present invention is not rotating. When the numerically controlled rotating shaft 8 is not rotating, the laser beam shoots vertically into the seawater, and the adjustment of the distance between the concave lens 13 driven by the first guide rail 10 and the first convex lens 12 driven by the second guide rail 11 realizes the vertical direction of the laser beam. At the same time, the stimulated Brillouin scattering signals excited at different depths are measured and the relationship between the signal-to-noise ratio of the stimulated Brillouin scattering signal in this direction and the detection depth is drawn.

[0040] image 3 It is the optical path diagram of laser beam convergence when the numerical control rotating shaft of the present invention rotates counterclockwise. When the numerically controlled rotating shaft 8 rotates counterclo...

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Abstract

The invention discloses a three-dimensional remote sensing detection method for marine water quality. The three-dimensional remote sensing detection method comprises the following detection steps: starting a computer, a laser device, a signal acquiring device ICCD and a numerical control rotation shaft, and moving a first guide rail and a second guide rail on a guide rail arm; sequentially increasing the laser collection depth and acquiring strongest simulated brillouin scattering signals in each layer by the computer; gathering the acquired simulated brillouin scattering signals by the computer, and drawing a distribution map of the simulated brillouin scattering signals in a two-dimensional space, thereby calibrating the signal-to-noise ratio of the simulated brillouin scattering signals in different positions; and finally analyzing the signal-to-noise ratio of the simulated brillouin scattering signals in a large-range sea area, thereby implementing three-dimensional remote sensing detection on the marine water quality. By virtue of the three-dimensional remote sensing detection method for marine water quality, the long-distance marine water quality is evaluated in advance when the remote sensing detection is carried out on the marine water quality, and then the detailed sampling analysis is carried out in the water area which exceeds the predetermined value.

Description

technical field [0001] The invention relates to an ocean optical detection technology, in particular to a three-dimensional remote sensing detection method for ocean water quality. Background technique [0002] For the monitoring of marine water quality, the sampling method is generally used to sample the seawater in a specific sea area, and then the laboratory conducts laboratory analysis. Regardless of the cumbersome chemical analysis method or the faster spectral analysis method, real-time monitoring of ocean water quality cannot be achieved. [0003] Chinese patent (publication number: CN 201589748 U) proposes a sea water quality detection device, which is provided with a support seat, a turntable is installed in the support seat, a right polarizer is engaged in the turntable, and a polarizer parallel to the right polarizer is installed on one side of the support seat. The left polarizer, the fixed seat of the left polarizer and the supporting seat are connected with a ...

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Application Information

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IPC IPC(8): G01N21/63
Inventor 王泓鹏何兴道史久林钱佳成武浩鹏严峰
Owner NANCHANG HANGKONG UNIVERSITY
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