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Three-dimensional remote sensing detection method of ocean water quality

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

Active Publication Date: 2017-02-22
NANCHANG HANGKONG UNIVERSITY
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Problems solved by technology

But the device is also not suitable for remote sensing monitoring of ocean water quality

Method used

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  • Three-dimensional remote sensing detection method of ocean water quality
  • Three-dimensional remote sensing detection method of ocean water quality
  • Three-dimensional remote sensing detection method of ocean water quality

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Embodiment

[0040] 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.

[0041] 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 counterclock...

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Abstract

The invention discloses a three-dimensional remote sensing detection method for sea water quality, the detection steps are as follows: start a computer, a laser, a signal collector ICCD and a numerically controlled rotating shaft, move the first guide rail and the second guide rail on the guide rail arm; make the laser convergent depth in sequence increase, the computer separately collects the strongest stimulated Brillouin scattering signal at each level; the computer summarizes the collected stimulated Brillouin scattering signal, and draws the distribution map of the stimulated Brillouin scattering signal in two-dimensional space , and then calibrate the signal-to-noise ratio of stimulated Brillouin scattering at different locations; finally complete the analysis of the signal-to-noise ratio of stimulated Brillouin scattering in a large-scale sea area, so as to realize the three-dimensional remote sensing detection of ocean water quality. The present invention can pre-evaluate the quality of long-distance ocean water bodies when performing remote sensing detection of ocean water quality, and then carry out detailed sampling analysis on water areas exceeding predetermined values.

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 arranged 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 s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N21/63
Inventor 何兴道史久林王泓鹏钱佳成武浩鹏严峰
Owner NANCHANG HANGKONG UNIVERSITY
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