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id="dcu7iwn" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="o7ogyvc" class="box"><p><p> 擴(kuò)散硅壓力變送器工作原理: </p> <p> 擴(kuò)散硅壓力變送器是在單晶硅片上擴(kuò)散一個(gè)惠斯通電橋，當(dāng)被測(cè)介質(zhì)的壓力直接作用于變送器的擴(kuò)散硅膜片上，使得變送器的膜片產(chǎn)生與介質(zhì)壓力成正比的微小位移。正常工作狀態(tài)下，膜片較大位移不大于0.025毫米，這時(shí)擴(kuò)散硅壓力變送器的橋壁電阻值發(fā)生變化，會(huì)產(chǎn)生一個(gè)差動(dòng)電壓信號(hào)，這一信號(hào)經(jīng)過(guò)**放大器，將量程相對(duì)應(yīng)的信號(hào)轉(zhuǎn)換輸出一個(gè)標(biāo)準(zhǔn)的模擬信號(hào)或數(shù)字信號(hào)。 </p> <p> 硅的電阻率對(duì)壓力有較高的敏感度，現(xiàn)在普遍使用硅材料作壓力變送器，也就是擴(kuò)散硅壓力變送器。擴(kuò)散硅是制造壓力變送器的中心部件，被封裝在316L不銹鋼的材料之中，外加施壓通過(guò)不銹鋼膜片，河北高溫型壓力變送器廠家、內(nèi)部密封的硅油傳遞到敏感的芯片上，擴(kuò)散硅敏感元件不直接接觸被測(cè)介質(zhì)，形成壓力測(cè)量的全固態(tài)結(jié)構(gòu)，使得擴(kuò)散硅壓力變送器能夠應(yīng)用更多的工況場(chǎng)合。 </p> <p> 擴(kuò)散硅壓力變送器作為一種高性能的壓力測(cè)量產(chǎn)品，可以很方便地進(jìn)行放大處理，裝配成標(biāo)準(zhǔn)信號(hào)輸出。擴(kuò)散硅壓力變送器廣泛應(yīng)用于石油、化工、冶金、電力、航空、醫(yī)療設(shè)備、汽車等行業(yè)的過(guò)程控制。擴(kuò)散硅壓力芯體外加氟橡膠O型圈進(jìn)行可靠密封。擴(kuò)散硅壓力變送器具有結(jié)構(gòu)小巧、安裝方便，抗干擾強(qiáng)、精度高、穩(wěn)定性好、響應(yīng)速度快，河北高溫型壓力變送器廠家、耐沖擊等特點(diǎn)。擴(kuò)散硅壓力變送器體積小，河北高溫型壓力變送器廠家、重量輕、安裝、調(diào)試、使用方便。河北高溫型壓力變送器廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北高溫型壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439390527344/2017285.png"></div><p> 壓力變送器的特殊類型： </p> <p> 壓力變送器是整個(gè)變送器行業(yè)zui主要的類型之一，這是壓力變送器應(yīng)用廣、功能性強(qiáng)等特點(diǎn)影響的。壓力變送器能夠?qū)狻⒁?、原油等介質(zhì)進(jìn)行測(cè)量，廣泛應(yīng)用關(guān)于各工業(yè)領(lǐng)域之中。也正是因?yàn)槿绱?，壓力變送器的?xì)分種類也很多，不同類型壓力變送器的特點(diǎn)也不同。 </p> <p> 防爆型壓力變送器，是具有防爆功能的變送器，常見的防爆類型有本安防爆和隔離防爆。如果您的工作現(xiàn)場(chǎng)具有一定的危險(xiǎn)性，就必須選擇防爆型壓力變送器，例如石油、天然氣、化工行業(yè)等。 </p> <p> 防水型壓力變送器，我們都知道一般情況下壓力變送器的應(yīng)用場(chǎng)合不能有冷凝和結(jié)露現(xiàn)象的產(chǎn)生，如果現(xiàn)場(chǎng)環(huán)境潮濕，很容易造成壓力變送器內(nèi)部進(jìn)水，導(dǎo)致電路板的燒毀，壓力變送器無(wú)法正常使用。防水型壓力變送器就是針對(duì)這種特殊場(chǎng)合進(jìn)行設(shè)計(jì)的。其特別的設(shè)計(jì)結(jié)構(gòu)能夠使壓力變送器的防護(hù)等級(jí)到達(dá)IP68，這是防水等級(jí)標(biāo)準(zhǔn)的zui gao ji別。 </p> <p> 衛(wèi)生型壓力變送器，在一些特殊行業(yè)比如醫(yī)療、制藥和食品行業(yè)，我們不僅需要壓力變送器對(duì)生產(chǎn)流程進(jìn)行壓力檢測(cè)，還要確保整個(gè)環(huán)境的衛(wèi)生與清潔。采用316L不銹鋼耐腐蝕性強(qiáng)，平膜型的設(shè)計(jì)結(jié)構(gòu)易清理，解決了很多對(duì)衛(wèi)生環(huán)境有特殊要求工況的難題。河北高溫型壓力變送器廠家擴(kuò)散硅壓力變送器具有工作可靠、性能穩(wěn)定、安裝使用方便、體積小、重量輕、性能價(jià)格比高等特點(diǎn)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北高溫型壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439246718750/8791737.png"></div><p> 防爆型壓力變送器由一體化智能傳感器和**電路組成。傳感器部分由壓力傳感器、信號(hào)調(diào)制電路、**數(shù)字處理芯片、溫度傳感器和數(shù)據(jù)存儲(chǔ)器等組成，**電子線路部分由LCD顯示屏、功能鍵和EMC電路組成。壓力信號(hào)經(jīng)壓力傳感器轉(zhuǎn)換為電信號(hào)，電信號(hào)經(jīng)調(diào)制后送到**數(shù)字處理芯片進(jìn)行數(shù)據(jù)處理，然后轉(zhuǎn)換為與壓力信號(hào)對(duì)應(yīng)4~20mA輸出信號(hào)，并在電流信號(hào)上疊加HART數(shù)字信號(hào)以進(jìn)行通訊. </p> <p> 防爆型壓力變送器具有以下特點(diǎn)：投入式壓力變送器防爆型分解圖小體積、高穩(wěn)定性、高靈敏度；全密封焊接結(jié)構(gòu)；多種量程選擇﹑用戶調(diào)試方便；防雷擊﹑防射頻干擾；具有零點(diǎn)/滿量程可調(diào)的選購(gòu)件；可選用小型一體化液晶顯示。 </p><p> 壓力變送器輸出電流波動(dòng)，也肯能與其現(xiàn)場(chǎng)工況有關(guān)。像是在管道中的壓力測(cè)量，應(yīng)重點(diǎn)檢查導(dǎo)壓管路，壓力變送器測(cè)量室內(nèi)是否有氣體(測(cè)量液體及蒸汽時(shí))或液體(測(cè)量氣體時(shí))；導(dǎo)壓管的伴熱溫度過(guò)高或過(guò)低，使被測(cè)介質(zhì)出現(xiàn)汽化或冷凝，都是造成壓力變送器輸出電流波動(dòng)的原因之一，可通過(guò)排污閥進(jìn)行排放,或通過(guò)壓力變送器測(cè)量室的排空絲堵進(jìn)行排放。導(dǎo)壓管內(nèi)有雜質(zhì),污物出現(xiàn)似堵非堵狀態(tài)，也會(huì)造成壓力變送器輸出電流波動(dòng),解決辦法就是排污。壓力變送器輸出電流波動(dòng)或不穩(wěn)定故障的排查，除上述原因外，同樣不能忽視與壓力變送器配套使用的儀表問(wèn)題引發(fā)的波動(dòng)。例如，配電器、安全柵故障，安裝專精振動(dòng)大，有電磁干擾等問(wèn)題，都有可能造成壓力變送器輸出電流的波動(dòng)。變送器當(dāng)兩側(cè)壓力不一致時(shí)，壓力變送器和***壓力變送器的工作原理和差壓變送器相同。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="河北高溫型壓力變送器廠家,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439170791016/8261680.png"></div><p style="text-indent:25px">在選用壓力變送器之初，要對(duì)現(xiàn)場(chǎng)使用工況進(jìn)行分析，根據(jù)具體使用環(huán)境選擇適合的壓力變送器，還要采取適當(dāng)?shù)拇胧瑴p少環(huán)境對(duì)壓力變送器的影響。壓力變送器穩(wěn)定性有定量指標(biāo)，在超過(guò)使用期后，需要重新進(jìn)行標(biāo)定，以確保壓力變送器的性能是否發(fā)生變化。在某些要求壓力變送器能長(zhǎng)期使用而又不能輕易更換或標(biāo)定的場(chǎng)合，所選用的壓力變送器穩(wěn)定性要求更嚴(yán)格，要能夠經(jīng)受住長(zhǎng)時(shí)間的考驗(yàn)。壓力變送器穩(wěn)定性有著重要的意義，選擇高穩(wěn)定性的壓力變送器是非常有必要的。在高穩(wěn)定性能這個(gè)基礎(chǔ)前提下，才能制造出具有高準(zhǔn)確度、高可靠性等能力的壓力變送器。壓力變送器穩(wěn)定性對(duì)于生產(chǎn)的正常運(yùn)行以及壽命的使用都有著重要的影響。壓力變送器在管道上使用，管內(nèi)無(wú)介質(zhì)，壓力不為零。陜西小巧型壓力變送器哪家好</p><p style="text-indent:25px">擴(kuò)散硅壓力變送器高準(zhǔn)確度、高穩(wěn)定性、選用進(jìn)口原裝傳感器，線性好，溫度穩(wěn)定性高。河北高溫型壓力變送器廠家</p><p> 智能型壓力變送器儀表顯示調(diào)整： </p> <p> 智能型壓力變送器依靠其便捷的HART通訊協(xié)議廣泛應(yīng)用于各工業(yè)領(lǐng)域，可對(duì)液體、氣體進(jìn)行絕壓、負(fù)壓和表壓的測(cè)量。就帶大家了解一下如何對(duì)智能型壓力變送器的顯示儀表進(jìn)行調(diào)整。 </p> <p> 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