液位高度論文液位高度實(shí)時在線檢測系統(tǒng)研究.doc

液位高度論文：液位高度實(shí)時在線檢測系統(tǒng)研究【中文摘要】針對傳統(tǒng)液位測量方法在測量環(huán)境惡劣和非接觸式測量技術(shù)以及測量精度方面的缺點(diǎn),本文通過深入了解液位測量方法和技術(shù)以及激光三角法測量原理,提出基于先進(jìn)激光三角位移傳感器技術(shù)和數(shù)據(jù)采集技術(shù)的測量系統(tǒng)研究,測量系統(tǒng)以LabVIEW為人機(jī)交互工具,完成了模擬信號采集,數(shù)字信號處理和系統(tǒng)登陸控制等功能。本文在液位測量系統(tǒng)設(shè)計(jì)過程中,利用Catia軟件實(shí)現(xiàn)了液位測量裝置及激光三角位移傳感器的建模和分析工作,依據(jù)傳感器輸出的模擬信號特性,選擇合適的數(shù)據(jù)采集卡和工控機(jī),建立數(shù)據(jù)采集卡和工控機(jī)的數(shù)據(jù)通信,結(jié)合使用LabVIEW編程語言,實(shí)現(xiàn)人機(jī)交互控制界面。測量系統(tǒng)經(jīng)過實(shí)際測試,對系統(tǒng)采集到的數(shù)據(jù)進(jìn)行分析和比較,再提出測量系統(tǒng)調(diào)試措施和改進(jìn)方法,使得測試裝置具有很好的穩(wěn)定性和高精度要求?！居⑽恼縄n 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.【關(guān)鍵詞】液位高度 激光三角法 LabVIEW 數(shù)據(jù)采集卡【英文關(guān)鍵詞】Level Liquid Laser Trigonometry LabVIEW Data Acquisition Card【目錄】液位高度實(shí)時在線檢測系統(tǒng)研究摘要4-5ABSTRACT5目錄6-8第一章 緒論8-171.1 引言81.2 液位測量方法的分析和確定8-121.2.1 電容液位計(jì)8-101.2.2 超聲波測量方法10-111.2.3 激光三角法11-121.2.4 液位測量方法的確定121.3 激光三角位移傳感器國內(nèi)外研究現(xiàn)狀12-151.3.1 國外激光三角位移傳感器發(fā)展現(xiàn)狀12-141.3.2 國內(nèi)激光三角位移傳感器發(fā)展現(xiàn)狀14-151.4 論文研究的目的和意義15-161.5 論文的主要研究內(nèi)容161.6 本章小結(jié)16-17第二章 激光三角法原理及系統(tǒng)組建17-232.1 激光三角法測量原理17-182.2 基于激光三角法測量系統(tǒng)的組建18-222.2.1 系統(tǒng)構(gòu)建的總體方案18-192.2.2 激光三角位移傳感器選擇192.2.3 工控機(jī)選擇19-202.2.4 傳感器安裝及裝置設(shè)計(jì)20-222.3 本章小結(jié)22-23第三章 激光三角位移傳感器技術(shù)研究23-333.1 激光光源23-243.2 光源準(zhǔn)直技術(shù)和光路結(jié)構(gòu)24-263.2.1 光源準(zhǔn)直和自準(zhǔn)直技術(shù)24-253.2.2 光路結(jié)構(gòu)25-263.3 電荷耦合器件(CCD)26-323.3.1 CCD的基本結(jié)構(gòu)27-293.3.2 CCD的基本工作原理29-303.3.3 CCD光電特性參數(shù)30-323.4 本章小結(jié)32-33第四章 數(shù)據(jù)信號采集原理33-424.1 數(shù)據(jù)采集卡的控制過程33-364.1.1 數(shù)據(jù)采集卡參數(shù)和功能33-354.1.2 數(shù)據(jù)采集卡的安裝35-364.1.3 數(shù)據(jù)采集A/D轉(zhuǎn)換364.2 數(shù)據(jù)采集接口通信技術(shù)36-394.2.1 USB接口方式37-384.2.2 并行接口方式384.2.3 PCI總線介紹38-394.3 數(shù)據(jù)存儲原理39-404.4 數(shù)據(jù)采集接口程序40-414.5 本章小結(jié)41-42第五章 基于LabVIEW的軟件系統(tǒng)設(shè)計(jì)42-575.1 LabVIEW設(shè)計(jì)方法42-435.1.1 LabVIEW語言特點(diǎn)425.1.2 LabVIEW基本程序環(huán)境42-435.2 測試裝置軟件系統(tǒng)組成43-545.2.1 管理用戶登錄44-465.2.2 用戶數(shù)據(jù)管理46-505.2.3 數(shù)據(jù)采集系統(tǒng)50-525.2.4 數(shù)據(jù)存儲與調(diào)用52-535.2.5 測試報表和打印53-545.3 程序打包54-565.3.1 生成EXE程序文件54-565.3.2 打包程序安裝565.4 本章小結(jié)56-57第六章 實(shí)驗(yàn)結(jié)果和誤差分析57-626.1 實(shí)驗(yàn)結(jié)果分