Seawater body scattering function measurement system

Abstract

The invention discloses a seawater body scattering function measurement system which comprises an optical system module, a central control module, a data acquisition and storage module, a data downloading module and a power supply module, through the arrangement of the four groups of scattered light detectors, the range of the collected scattered light signals of the seawater body is more comprehensive, and the dynamic measurement range is improved so that the measurement result is more representative; through the design of combining the high-sensitivity photoelectric detector and the high-precision 24-bit analog-to-digital converter, an optical signal is effectively amplified, so that the problem that a weak scattering signal is difficult to detect is solved, and the influence of sunlighton scattered light signal measurement is eliminated through light source modulation; the depolarizing film is installed at the output end of the laser light source, the polarization phenomenon of thelaser light source is eliminated, in addition, the wireless data transmission module is used in cooperation with the large-capacity FLASH memorizer, the automation degree of the system is higher, andfield operation of measuring personnel is greatly facilitated.

Description

technical field [0001] The invention relates to the technical field of body scattering function measurement, in particular to a sea water body scattering function measurement system. Background technique [0002] The ocean is the space for human survival and development, and it contains extremely rich natural resources. Researching and making good use of the ocean will become an inevitable choice for human survival and development. It is an important part of chain and sea water body. 50% of the earth's oxygen is produced by phytoplankton photosynthesis. Its type and size distribution are of great significance to water quality and ecological balance. The volume scattering function of suspended particles in sea water is the inherent optics of water body It describes the directionality of light scattering in water, and is the basis for understanding and simulating the transmission of light radiation in seawater. By measuring the volume scattering function of seawater, we can ob...

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Problems solved by technology

[0004] In view of the above problems, the object of the present invention is to propose a sea water scattering function measurement system, which effectively amplifies the optical signal through the combination of a high-sensitivity photodetector and a high-precision 24-bit analog-to-digital converter. Furthermore, the problem of difficult detection of weak scattering signals is solved, and the influence of sunlight on the measurement of scattered light signals is eliminated through light source modulation, and the polarization phenomenon of laser light sources is eliminated by installing a depolarizing film at the output end of the laser light source

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