液位高度論文液位高度实时在线检测系统研究.docVIP

液位高度论文：液位高度实时在线检测系统研究 【中文摘要】针对传统液位测量方法在测量环境恶劣和非接触式测量技术以及测量精度方面的缺点,本文通过深入了解液位测量方法和技术以及激光三角法测量原理,提出基于先进激光三角位移传感器技术和数据采集技术的测量系统研究,测量系统以LabVIEW为人机交互工具,完成了模拟信号采集,数字信号处理和系统登陆控制等功能。本文在液位测量系统设计过程中,利用Catia软件实现了液位测量装置及激光三角位移传感器的建模和分析工作,依据传感器输出的模拟信号特性,选择合适的数据采集卡和工控机,建立数据采集卡和工控机的数据通信,结合使用LabVIEW编程语言,实现人机交互控制界面。测量系统经过实际测试,对系统采集到的数据进行分析和比较,再提出测量系统调试措施和改进方法,使得测试装置具有很好的稳定性和高精度要求。 【英文摘要】In the view of disadvantage of the traditional liquid level measurement method in the tough measurement environment and non-contact measurement technique as well as measurement precision, this article combines the present liquid level measurement method and technique with the laser trigonometry principle, adopt the advanced laser displacement sensor based on triangulation and Data Acquisition Card to make the LabVIEW as a man-machine interaction tool to complete the acquisition of analog signals, digital signal processing and the control of logging in the system.In the designing of liquid level measuring system, the article utilizes Catia to develop the liquid level measurement platform, accomplish the modeling and analysis of laser displacement sensor. By analyzing the output analog signals of sensor, select the appropriate Data Acquisition Card and Industrial Personal Computer, which complete the data communication between Data Acquisition Card and Industrial Personal Computer, applying the LabVIEW software to programmer for realizing the control interface of man-machine interaction.In order to ensure the stability and high precision demand of the system, it is necessary to put the liquid level measuring system in the real measurement environment to detect the system and analyze data, compared to the trial results to debug and improve the system. 【关键词】液位高度 激光三角法 LabVIEW 数据采集卡 【英文关键词】Level Liquid Laser Trigonometry LabVIEW Data Acquisition Card 【目录】液位高度实时在线检测系统研究 摘要 4-5 ABSTRACT 5 目录 6-8 第一章 绪论 8-17 1.1 引言 8 1.2 液位测量方法的分析和确定 8-12 1.2.1 电容液位计 8-10 1.2.2 超声波测量方法 10-11 1.2.3 激光三角法 1