"基于AT89C51单片机的水质监测系统设计及原理"

he topic of concern, so the monitoring of water quality has become an important measure to protect water resources. Based on this, this paper designs a system that can effectively monitor water quality. The monitoring of water quality mainly focuses on monitoring the concentration of free ions in water and the turbidity of water. The design scheme is based on the AT89C51 single chip microcomputer, which collects water samples, processes the collected water samples through sensors to generate analog signals, and then converts the analog signals into digital signals through an analog-to-digital converter (A/D converter). The converted signals are then transmitted to the single chip microcomputer, which processes the signals and displays them through a display module. Through this design, the turbidity and free ion concentration in water can be effectively obtained, thereby determining the level of water pollution. In this design, the principles of water quality monitoring, the hardware structure, the working principle, and the use of each functional circuit are systematically introduced. Keywords: water quality monitoring, AT89C51 single chip microcomputer, data acquisition, A/D conversion, concentration of free ions in water, turbidity, sensor. 水质监测系统基于单片机设计 摘要： 如今水污染已成为社会关注的话题，因此水质监测已成为保护水资源的重要措施。基于此，本文设计了一款能够有效监测水质的系统。水质监测主要集中在监测水中的游离离子浓度和水的浑浊度。设计方案基于AT89C51单片机，通过传感器对水样进行采集，将采集到的水样处理生成模拟信号，然后通过模拟-数字转换器(A/D转换器)将模拟信号转换成数字信号，传输至单片机，单片机处理后再通过显示模块显示。通过本设计可有效获取水的浑浊度和游离离子浓度，从而判断水的污染程度。在本设计中，系统地介绍了水质监测原理、硬件结构、工作原理及其使用和各功能电路的设计。关键词：水质监测、AT89C51单片机、数据采集、A/D转换、水中游离离子浓度、浑浊度、传感器。