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随着海洋调查及水下工程的发展,原在海洋水文调查中测量海水透明度的透明度板已不能适应当前的要求。透明度板的读数与表征海水光学性质的重要参数——衰减系数α或衰减长度1/α——没有直接对应的关系;另外,透明度板只能在日间对表层流水进行测量;再则,透明度板的读数受海况、天气及主观因素的影响。因此,急需有一种客观的,不受外界
With the development of marine surveys and underwater engineering, the transparency board originally used to measure the transparency of seawater in marine hydrological surveys can no longer meet the current requirements. There is no direct correspondence between the reading of the transparency plate and the important parameter characterizing the optical properties of the seawater - the attenuation coefficient α or the attenuation length 1 / α; in addition, the transparency plate can only measure surface water flow during the daytime; furthermore, the transparency Plate readings are affected by sea conditions, weather and subjective factors. Therefore, there is an urgent need to have an objective, free from the outside world