【正文】 uipmentrelated work technology,and introduces the feature of LabVIEW. Fan performance test in the second part analysis the basic principle, and then based on the system design requirements of sensor, fan work environment, the rotary baffle and data acquisition card and so on has carried on the selection, design the signal conditioning circuit。 LabVIEW 全套設(shè)計(jì)（圖紙）請(qǐng)聯(lián)系 174320523 各專(zhuān)業(yè)都有 目 錄 摘 要 ................................................................................................................................................ IV Abstract ............................................................................................................................................... V 1 緒論 .................................................................................................................................................. 1 引言 ............................................................................................................................................... 1 研究的目的和意義 ................................................................................................................ 1 國(guó)內(nèi)外研究狀況 .................................................................................................................... 1 本文研究的內(nèi)容和目標(biāo) ........................................................................................................ 2 2 虛擬儀器技術(shù)及相關(guān)知識(shí) .............................................................................................................. 3 虛擬儀器簡(jiǎn)述 ........................................................................................................................ 3 虛擬儀器系統(tǒng)的構(gòu)成 ............................................................................................................ 3 虛擬儀器的硬件 .......................................................................................................... 3 虛擬儀器的軟件 .......................................................................................................... 3 虛擬儀器的特點(diǎn) .................................................................................................................... 3 虛擬儀器的開(kāi)發(fā)平臺(tái) ............................................................................................................ 4 面向儀器與測(cè)控過(guò)程的圖形化開(kāi)發(fā)平臺(tái) —LabVIEW ............................................. 4 LabVIEW 的特點(diǎn) ..................................................................................................... 4 本章小結(jié) ................................................................................................................................ 5 3 風(fēng)機(jī)性能試驗(yàn)的原理 ...................................................................................................................... 6 風(fēng)機(jī)性能試驗(yàn)概述 ................................................................................................................ 6 風(fēng)機(jī)性能試驗(yàn)的原理和方法 ...................................................................................... 6 風(fēng)機(jī)的性能參數(shù) .......................................................................................................... 6 風(fēng)機(jī)的性能曲線(xiàn) .......................................................................................................... 7 風(fēng)機(jī)性能試驗(yàn) ........................................................................................................................ 7 風(fēng)機(jī)性能測(cè)試的環(huán)境參數(shù) .......................................................................................... 7 風(fēng)機(jī)性能測(cè)試中的結(jié)構(gòu)參數(shù) ...................................................................................... 7 風(fēng)機(jī)性能試驗(yàn)裝置的方案及選用 .............................................................................. 8 風(fēng)機(jī)性能參數(shù)的相關(guān)計(jì)算、處理 ........................................................................................ 9 風(fēng)機(jī)性能曲線(xiàn)繪制 .............................................................................................................. 10 本章小結(jié) .............................................................................................................................. 10 4 采集 系統(tǒng)的設(shè)計(jì) ............................................................................................................................. 11 風(fēng)機(jī)性能測(cè)試系統(tǒng)的組成 .................................................................................................. 11 風(fēng)機(jī)工況調(diào)節(jié)裝置的設(shè)計(jì) .................................................................................................. 11 結(jié)構(gòu)設(shè)計(jì) .................................................................................................................... 11 步進(jìn)電機(jī)的控制 ........................................................................................................ 12 步進(jìn)電機(jī)的選擇 ........................................................................................................ 13 系統(tǒng)測(cè)試的內(nèi)容與方法 ...................................................................................................... 13 全套設(shè)計(jì)（圖紙）請(qǐng)聯(lián)系 174320523 各專(zhuān)業(yè)都有 靜壓的測(cè)量 ................................................................................................................ 13 流量的測(cè)量 ................................................................................................................ 13 扭矩的測(cè)量 ................................................................................................................. 15 傳感器的選用 ...................................................................................................................... 16 壓力傳感器 ................................................................................................................ 16 差壓傳感器 ................................................................................................................ 16 溫度傳感器 ................................................................................................................ 17 轉(zhuǎn)速傳感器 ..........................................................