多点激光尘埃粒子计数器系统的设计与实现

发布时间：2018-01-03 20:25

本文关键词：多点激光尘埃粒子计数器系统的设计与实现　出处：《南京理工大学》2017年硕士论文　论文类型：学位论文

【摘要】：激光粒子计数器是洁净环境监测的重要手段,在精密仪器制造、药品生产和半导体电子等多个行业有着广泛的应用。在保证计数器性能的前提下,实现小型化、分布式部署和实时监控成为了激光粒子计数器的重要研究方向。因此,本文设计了一种基于万维网的多点激光粒子计数器,为洁净环境监测的小型化和实时监测探索新思路。本文在对国内外资料深入调研的基础上,选用日本三洋DL7140-201S型半导体激光器为照明光源,采用非球面镜和柱面镜配合的成像校正系统对照明光束进行整形,采用双光阑、双光陷阱的光噪声吸收系统提高了传感器的光学信噪比,选用OP37型运算放大器和LM311型电压比较器设计了电信号分析处理电路,完成了小型化、低功率激光粒子计数器传感器的设计。在此基础上,选用具有超强可扩展性的XMPP物联网协议,在Centos7.0操作系统下搭建了 Ejabberd服务器,选用具有全硬件TCP/IP协议栈的W5500型以太网控制器设计了设备端网络通信电路,使用MVVM软件设计模式完成了客户端的设计。最后,对整个多点激光粒子计数器的进行了性能测试和分析,为后续的设计打下了良好的基础。本文的研究工作对于激光粒子计数器的小型化、分布式部署和实时监控的相关研究具有一定的参考价值。
[Abstract]:Laser particle counter is an important means of clean environmental monitoring, manufacturing of precision instruments in many industries, pharmaceutical production and semiconductor electronics has been widely used. In the premise of ensuring the performance of the counter, to achieve miniaturization, distributed deployment and real-time monitoring has become an important research direction of laser particle counter. Therefore, this paper designs a multi point laser particle counter based on the world wide web, explore new ideas for the miniaturization of clean environment monitoring and real-time monitoring. Based on the information at home and abroad in-depth research on the selection of Japanese SANYO DL7140-201S type semiconductor laser as light source, the aspheric lens and cylindrical lens with imaging correction system through the shaping of the lighting beam, double aperture, light noise absorption system of double optical trap improves the sensor optical signal-to-noise ratio, the OP37 operational amplifier and LM311 Voltage comparator is designed signal processing circuit analysis, completed the design of miniaturization, low power laser particle counter sensor. On this basis, with super scalable XMPP networking protocol, set up a Ejabberd server in the Centos7.0 operating system, the terminal equipment network communication circuit design using a W5500 type controller with Ethernet the hardware of the TCP/IP protocol stack, using the MVVM software design mode to complete the client's design. Finally, the multi point laser particle counter were tested and analyzed, a good foundation for the subsequent design of miniaturization for laser particle counter. The research work in this paper, the related research and deployment of distributed real-time the monitor has a certain reference value.

【学位授予单位】：南京理工大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：TN249

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