Sea surface microstructure measuring device for ship

Abstract

The invention relates to a ship adopting sea surface micro structure measuring device, which comprises an underwater optical device consisting of a light source and a measuring coder, and an information transmission and treating system consisting of a CCD camera and a computer. The invention is characterized in that the ship adopting sea surface micro structure measuring device further comprises a lifting device which is connected with the underwater optical device; the guide rail of the lifting device is welded and tightly leaned on a guide rail rack; a motor arranged at the upper part of the guide rail rack pulls lifting chains arranged at the two ends of the guide rail rack; the guide rail rack is connected with a base through two parallel blocking rings; the base is vertically fixed on the ship board. The measuring coder comprises glass windows arranged at the two ends of the drawtube; a Fresnel lens is close to the lower part of the glass window at the upper end; a color coding sheet is tightly leaned on the glass window at the lower end; the Fresnel lens, the color coding sheet and the Fresnel lens are on a same optical shaft. The invention is suitable for the ship voyage and operation, thereby monitoring the big size sea surface gradient field in real time with a space resolution of 0.5mm and a slope measuring precision reaching up to 0 degree or 2 degrees.

Description

technical field [0001] The wooden invention is a marine sea surface microstructure measurement device that uses an optical encoding method to measure the three-dimensional characteristic parameters of the sea surface microstructure such as the short-wave geometric and dynamic characteristics of the sea surface and its time-space distribution in real time. Background technique [0002] Since the micro-scale movement of the sea surface is of great significance in the research and application of dynamic oceanography, sea-air interaction and remote sensing oceanography, the development of microstructure measuring instruments has been carried out internationally since the beginning of the last century. The main ones are: Cox established the light intensity encoding technology, and developed an optical device specially for measuring the microstructure of the sea surface, and measured the slope of the short wind wave surface and its time series. However, the method of calculating t...

AI Technical Summary

Problems solved by technology

However, the method of calculating the slope by light intensity has the following problems: the fluctuation of the wave introduces the optical path difference, which leads to the change of the light intensity. Insurmountable influence

Its disadvantage is that the catamaran self-capacity measurement mode is adopted in the on-site measurement method, which cannot be attached to conventional marine operation vessels for offshore operations, and at the same time cannot monitor the quality of observation images in real time

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