Photoelectric transparency instrument

Abstract

The invention belongs to the technical field of marine observation, and particularly relates to a photoelectric transparency instrument. The photoelectric transparency instrument comprises photoelectric conversion discs, a balance adjusting mechanism, a bottom pendant and a support frame, wherein the lower end of the support frame is connected with the bottom pendant, the upper end of the support frame is connected with the plurality of photoelectric conversion discs distributed in the circumferential direction, the plurality of photoelectric conversion discs surround the outer side of the balance adjusting mechanism and are connected with the balance adjusting mechanism, and the photoelectric conversion discs are used for measuring the downward radiance of an underwater optical field and recording the measuring time. According to the photoelectric transparency instrument, the signal intensity and the change of the underwater light field are acquired, the influence of background light change and human eye difference on water transparency measurement can be avoided, more accurate water transparency data can be obtained, and the influence problems of instrument mooring cable shadow and device inclination can be effectively avoided.

Description

technical field [0001] The invention belongs to the technical field of ocean observation, in particular to a photoelectric transparency meter. Background technique [0002] Water transparency is an important measurement parameter for primary productivity assessment, water quality, and ocean optical remote sensing calibration. Since the transparency of water body represents the depth to which natural light can penetrate the water body, it affects the photosynthesis of underwater plants, which in turn determines the living environment of animals and plants in the water area. [0003] At present, the method of measuring the transparency of water body is to use a cheap transparency plate to put it into the water body until the human eye can just recognize the depth of the transparency plate, so as to estimate the transparency value of the water body. This measurement method is due to human eyes and natural light. Uncertainty arises from strong differences. Therefore, the trans...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problem of inaccurate measurement of existing transparency discs, the purpose of the present invention is to provide a photoelectric transparency meter, which can accurately obtain the transparency of water bodies, and solve the problem of shadows and equipment inclinations caused by the rotation of tethered cables in existing photoelectric detection equipment, resulting in water transparency. The problem of inaccurate measurements

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