【正文】
h the boiler being leaked or not automatically. The method adopts the PCI8193 data acquisition module to realize acquiring the data through multichannel. Based on virtual instrument LabVIEW it can test the differential pressure signal input data convert the scale process data and display the multichannel data in real time. Thus we can show the differential pressure variation curve which can be recorded automatically. We store results and information in the Access data base and build up the system of data management and query. So we can realize the function of play backing the records of storing historical data Some factory are related to the boilers, related to pressure, as well as related to testing the safety of boilers leak, so the sensor bined with the virtual instrument for a boiler leak monitoring system of boiler leak detection system has broad application prospects. 【 KEYWORDS】 LabVIEW; virtual technology; Gas leak detection 基于虛擬儀器的汽鍋漏氣檢測(cè)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn) IV 目 錄 摘 要 ........................................................................................................................................... II Abstract .........................................................................................................................................III 目 錄 .......................................................................................................................................... IV 1. 緒論 .........................................................................................................................................1 汽鍋漏氣監(jiān)測(cè)的意義 ..................................................................................................1 虛擬儀器技術(shù)的國(guó)內(nèi)外發(fā)展現(xiàn)狀 .................................................................................1 虛擬儀器技術(shù)發(fā)展趨勢(shì) ...............................................................................................1 國(guó)內(nèi) 外傳感器發(fā)展現(xiàn)狀 ...............................................................................................2 本論文的主要工作 ......................................................................................................3 2 傳感器的研究 ...........................................................................................................................6 傳感器的分類 .............................................................................................................6 傳感器常用術(shù)語(yǔ) .........................................................................................................7 全球傳感器市場(chǎng)預(yù)測(cè) ..................................................................................................7 3 壓力傳感器 ..............................................................................................................................9 工作原理 ....................................................................................................................9 壓力傳感器種類 .........................................................................................................9 壓力傳感器的技術(shù)參數(shù) ............................................................................................. 10 選取 原則 ................................................................................................................. 10 壓力傳感器常見的故障 ............................................................................................. 10 4 基于 LabVIEW 的數(shù)據(jù)采集與處理系統(tǒng) ...................................................................................... 12 虛擬儀器的概念 ....................................................................................................... 12 LabVIEW 的概念 ...................................................................................................... 13 LabVIEW 的特點(diǎn) ...................................................................................................... 13 基于 LabVIEW 語(yǔ)言的數(shù) 據(jù)采集系統(tǒng)界面 .................................................................. 14 軟件總體結(jié)構(gòu) ........................................................................................................... 15 硬件總體結(jié)構(gòu) ........................................................................................................... 17 系統(tǒng)模塊介紹 ........................................................................................................... 18 系統(tǒng)程序框圖 ........................................................................................................... 21 5 總結(jié) ....................................................................................................................................... 27 參考文獻(xiàn) ....................................................................................................................................... 28 致謝 .............................................................................................................................................. 29 寧波大學(xué)科技學(xué)院本科畢業(yè)設(shè)計(jì)(論文) 1 1. 緒論 汽鍋漏氣監(jiān)測(cè)的意義 汽鍋漏氣性檢測(cè)是關(guān)于生產(chǎn)及設(shè)備安全的重大舉措。基于虛擬儀器 LabvIEW 實(shí)現(xiàn)對(duì)差壓信號(hào)進(jìn)行檢測(cè),進(jìn)行數(shù)據(jù)數(shù)據(jù)輸入、標(biāo)度轉(zhuǎn)換、數(shù)據(jù)處理,多路數(shù)據(jù)的實(shí)時(shí)顯示 ,實(shí)現(xiàn)差壓變化曲線的顯示和自動(dòng)記錄,并將結(jié)果和信息存入 Access 數(shù)據(jù)庫(kù)中,建立數(shù)據(jù)管理和查詢系統(tǒng),實(shí)現(xiàn)歷史數(shù)據(jù)的存儲(chǔ)記錄、回放功能 。在對(duì)汽鍋漏氣性檢測(cè)時(shí),采用待測(cè)汽鍋和好的汽鍋中間通過差壓傳感器進(jìn)行連接,輸入并記錄汽鍋充氣后一段時(shí)間差壓傳感器的壓力變化,并能自動(dòng)判別汽鍋是否漏氣。 本科畢業(yè)設(shè)計(jì)(論文) 題目:基于虛擬儀器的汽鍋漏氣檢測(cè)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn) Boiler leak detection system design and implementation based on Virtual Instrument I 誠(chéng) 信 承 諾 我謹(jǐn)在此承諾:本人所寫的畢業(yè)論文《基于虛擬儀器的汽鍋檢測(cè)系統(tǒng)的設(shè)計(jì)與實(shí)現(xiàn)》均系本人獨(dú)立完成,沒有抄襲行為,凡涉及其