首页> 中文期刊> 《光电技术应用》 >基于光散射法的PM2.5全自动检测仪的实现

基于光散射法的PM2.5全自动检测仪的实现

         

摘要

基于光散射法的PM2.5检测具有原理简单、数据采集和处理简单、测量结果准确等优点,成为PM2.5检测的主要方法之一。PM2.5检测系统采用模块化设计,由光电采集模块、控制处理模块、显示预警模块和电源模块四部分组成,实现PM2.5的实时监控和预警。Proteus仿真结果显示,系统检测准确,误差在可控范围。系统硬件调试测试后,可实时显示PM2.5的粒子数,达到预定值时,蜂鸣器报警。%PM2.5 detection system based on light scattering method has the advantages, such as simple princi⁃ple, simple data acquisition and processing and accurate measurement results, so it is one of the main methods of PM2.5 detection. Modularization design is adopted in PM2.5 detection system which is composed of four parts such as photoelectric acquisition, control and processing, display and warning and power modules. And PM2.5 monitor⁃ing and warning in real-time are realized. Proteus simulation results show that the system has accurate detection ability and the error is within the range of control. After hardware debugging and testing of the system, the PM 2.5 particles number can be displayed in real time. When the particles number reaches a predetermined value, the buzz⁃er warns.

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