便携式光电式浊度仪的设计  

Design of Portable Photoelectric Turbidimeter

作　　者：潘银松[1,2] 蒲春宇 李政英 王丽芳 黄鸿[1] PANYin-song;PUChun-yu;LI Zheng-ying;WANGLi-fang;HUANG Hong(Key Laboratory of Optoelectronic Technique System of the Ministry of Education,Chongqing University,Chongqing 400044,China;City College of Science and Technology,Chongqing University,Chongqing 400044,China)

机构地区：[1]重庆大学光电技术与系统教育部重点实验室,重庆400044 [2]重庆大学城市科技学院,重庆400044

出　　处：《电脑知识与技术》2019年第8X期249-253,共5页Computer Knowledge and Technology

基　　金：重庆市重点产业共性关键技术创新专项重大研发项目（cstc2017zdcy-zdzxX0009)

摘　　要：浊度是指水中的悬浮颗粒和胶体对光线的阻碍作用,反映水浑浊度的重要指标之一。根据朗伯-比尔定律,我们提出了一种基于光电式测量水样浊度的方法,并阐述了该浊度仪的硬件电路设计、软件设计以及光路设计的整套嵌入式系统。实验结果表明:作者设计的浊度仪在(0-400NTU)的范围内,浊度与采样的AD值是呈分段线性的关系,测量效果较好。与传统的光电式浊度仪相比,该方法不仅电路结构简单,而且具有测量重复性好、测量精度高、功耗低等优点。Turbidity refers to the obstruction of suspended particles and colloids in water,reflecting one of the important indicators of water turbidity.According to Lambert-Beer's law,this paper proposed a method based on photoelectric measurement of turbidity of water samples,and describes the hardware circuit design,software design and optical system design of the turbidity meter.The experimental results show that the turbidity meter designed in this paper is in the range of(0-400 NTU),and the turbidity and the sampled AD value are linear relationship of the component segments,and the measurement results are better.Compared with the traditional photoelectric turbidimeter,this method not only has a simple circuit structure,but also has the advantages of good measurement repeatability,high measurement accuracy,low power consumption,and the like.

关 键 词：浊度 瑞利散射 米氏散射 浊度仪 光电式 

分 类 号：TH741[机械工程—光学工程]