DEVELOPMENT OF MEASUREMNT SYSTEM FOR THE POLLUTION OF WATER QUALITY IN WIDE AREAS OF HYDROSPHERE BY LIGHT WAVE

研制了一种测定河流、海洋等大面积液体中悬浮粒子浓度和粒径分布的方法和装置。用多路激光进行浓度测量及粒径分布计算。我们测量了几种波长为0.6328、1.15、3.39和10.6的激光器的衰减。妈妈，液体中的悬浮颗粒。结果表明，该方法可以利用光波衰减理论测量液体中悬浮粒子的浓度和粒径分布。基于光波衰减理论，设计了一种原位测量系统。通过原位测量实验，测量了激光在河流和管道中衰减α - w（激光传播损耗和重量浓度）的特性。因此，我们已经证实了评估悬浮颗粒的α -W特性是可能的，这是获得比例系数k（=W/ α）精确值的最重要的步骤。不用说，本研究所获得的方法可以应用于液体中的悬浮颗粒。

A procedure and apparatus have been developed to determine the concentration and size distribution of particles suspended in a liquid of wide areas for river and sea etc.1.The measurement of concentration and calculation for size distribution by using several lasers. We measured the attenuation of several lasers that use wave length of 0.6328, 1.15,3.39 and 10.6.mum, for suspended particles in liquid. As a result,it has been confirmed that this method was able to measure for the concentration and size distribution of suspended particles in liquid by utilizing the light wave attenuation theory.2.Based on the light wave attenuation theory, an in-situ measurement system was designed. In-situ measurement experiments were performed to measure alpha-W(laser propagation loss and weight concentration) characteristics of attenuation by laser in water of river and pipe. As a result, we have been confirmed to become possible to assess the alpha-W characteristics of suspended particles, which is most important procedure to get the exact value of coefficient of proportion k(=W/alpha). It is needless to say that method obtained in the present study can be applied for suspended particles in liquid.