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</a></p></div></div><div id="xbyvpli" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="znphovx" class="box"><p><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)?、液、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，陜西高溫型壓力變送器廠家供應(yīng)。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，陜西高溫型壓力變送器廠家供應(yīng)。壓力變送器在管道上使用，陜西高溫型壓力變送器廠家供應(yīng)，管內(nèi)無(wú)介質(zhì)，壓力不為零。陜西高溫型壓力變送器廠家供應(yīng)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西高溫型壓力變送器廠家供應(yīng),壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438938095703/4859570.png"></div><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、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、耐沖擊等特點(diǎn)。河北設(shè)備級(jí)壓力變送器哪家好壓力變送器根據(jù)傳感器種類，可分為電容式壓力變送器、擴(kuò)散硅壓力變送器、單晶硅壓力變送器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西高溫型壓力變送器廠家供應(yīng),壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438873701172/3612278.png"></div><p> 在易燃易爆的工況場(chǎng)合下，考慮到現(xiàn)場(chǎng)的安全性，需要選擇具有防爆功能的壓力變送器。壓力變送器在防爆方式中有三種方式：控制易爆氣體、控制局限和控制yinbao源。 </p> <p> 控制易爆氣體：防爆壓力變送器工作原理是在一個(gè)密封的隔爆箱體內(nèi)，充滿不含易爆氣體的潔凈氣體或惰性氣體，并保持箱內(nèi)氣壓略高于箱外氣壓，將壓力變送器安裝在箱內(nèi)。 </p> <p> 控制局限：這種形式的工作原理是將防爆壓力變送器外殼設(shè)計(jì)為隔爆標(biāo)準(zhǔn)殼體，防爆壓力變送器設(shè)計(jì)時(shí)按隔爆標(biāo)準(zhǔn)的殼體，按規(guī)范嚴(yán)格設(shè)計(jì)、制造和裝配一切的管理辦法執(zhí)行工藝，使在殼體內(nèi)發(fā)作的不致于激發(fā)殼體外風(fēng)險(xiǎn)性氣體的。隔爆防爆辦法的設(shè)計(jì)與制造標(biāo)準(zhǔn)極端嚴(yán)厲，并且裝配、接線和維修的操作規(guī)程也十分嚴(yán)厲。該辦法決定了隔爆的電氣設(shè)備、儀表往往十分嚴(yán)格，操作須斷電等。 </p> <p> 控制yinbao源：此種方法的工作原理是應(yīng)用安全柵進(jìn)行隔離接線從防爆壓力變送器在用電配電進(jìn)行處理，將供應(yīng)給現(xiàn)場(chǎng)防爆壓力變送器的電能量限制在既不能發(fā)生足以yinbao的火花，又能發(fā)生足以yinbao的儀表外表溫升的平安局限內(nèi)。依照國(guó)際規(guī)范和我國(guó)的國(guó)度規(guī)范，當(dāng)安全柵平安區(qū)一側(cè)所接設(shè)備發(fā)作任何以障時(shí)，實(shí)質(zhì)安全防爆辦法確保風(fēng)險(xiǎn)現(xiàn)場(chǎng)的防爆安全。 </p><p style="text-indent:25px">防爆型壓力變送器品種規(guī)格齊全、安裝使用簡(jiǎn)便、安全防爆，可廣泛應(yīng)用于石化、電力、冶金、制藥、食品加工等行業(yè)，產(chǎn)品符合"IEC"標(biāo)準(zhǔn)，防爆型壓力變送器選用國(guó)際有名公司高精度、高穩(wěn)定性壓力傳感器組件，經(jīng)過(guò)高可靠性的放大電路及精密溫度補(bǔ)償，將被測(cè)介質(zhì)的絕壓或表壓轉(zhuǎn)換成4~20mA，0~5VDC，0~10VDC及1~5VDC等標(biāo)準(zhǔn)電信號(hào)。高質(zhì)量的傳感器、全密封焊接的封裝技術(shù)以及完善的裝配工藝確保了該產(chǎn)品的優(yōu)異質(zhì)量和zui佳性能。該產(chǎn)品有多種接口形式和多種引線方式，能夠zui 大限度的滿足客戶的需要,適用于與各種測(cè)量控制設(shè)備配套使用。擴(kuò)散硅壓力變送器可替代傳統(tǒng)的遠(yuǎn)傳壓力表，霍爾元件、差動(dòng)變送器，并具有DDZ-Ⅱ及DDZ-Ⅲ型變送器性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="陜西高溫型壓力變送器廠家供應(yīng),壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439246718750/8791737.png"></div><p> 壓力變送器問(wèn)題分析歸納： </p> <p> 1、變送器要測(cè)量什么樣的壓力：先確定系統(tǒng)中要確認(rèn)測(cè)量壓力的zui大值，一般而言，需要選擇一個(gè)具有比zui大值還要大1.5倍左右的壓力量程的變送器。這主要是在許多系統(tǒng)中，尤其是水壓測(cè)量和加工處理中，有峰值和持續(xù)不規(guī)則的上下波動(dòng)，這種瞬間的峰值能破壞壓力傳感器，持續(xù)的高壓力值或稍微超出變送器的標(biāo)定最大值會(huì)縮短傳感器的壽命，然而，由于這樣做會(huì)精度下降。于是，可以用一個(gè)緩沖器來(lái)降低壓力毛刺，但這樣會(huì)降低傳感器的響應(yīng)速度。所以在選擇變送器時(shí)，要充分考慮壓力范圍，精度與其穩(wěn)定性。 </p> <p> 2、什么樣的壓力介質(zhì)：我們要考慮的是壓力變送器所測(cè)量的介質(zhì),黏性液體、泥漿會(huì)堵上壓力接口，溶劑或有腐蝕性的物質(zhì)會(huì)不會(huì)破壞變送呂中與這些介質(zhì)直接接觸的材料。以上這些因素將決定是否選擇直接的隔離膜及直接與介質(zhì)接觸的材料。一般的壓力變送器的接觸介質(zhì)部分的材質(zhì)采用的是316不銹鋼,如果你的介質(zhì)對(duì)316不銹鋼沒有腐蝕性,那么基本上所有的壓力變送器都適合你對(duì)介質(zhì)壓力的測(cè)量.如果你的介質(zhì)對(duì)316不銹鋼有腐蝕性，那么我們就要采用化學(xué)密封起到保護(hù)壓力變送器,延長(zhǎng)了壓力變送器的壽命. 變送器中傳感元件的自重即會(huì)影響到微差壓變送器的輸出，在安裝微差壓變送器出現(xiàn)的零位變化情況屬正常情況。河北設(shè)備級(jí)壓力變送器哪家好</p><p style="text-indent:25px">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)。陜西高溫型壓力變送器廠家供應(yīng)</p><p style="text-indent:25px"><p>壓力變送器是一款常用的變送器類型。具有精度高、穩(wěn)定性好、響應(yīng)速度快、抗干擾能力強(qiáng)，結(jié)構(gòu)小巧、安裝方便等優(yōu)點(diǎn)。壓力變送器的電路是整個(gè)儀表中重要的組成部分，電路的正常與否影響著壓力變送器的工作狀態(tài)。我們?nèi)绾螌?duì)壓力變送器的電路進(jìn)行檢查呢？下面來(lái)看具體分析。<p>狀況一：將壓力變送器接通電源，當(dāng)壓力變送器輸入壓力信號(hào)后，檢查輸出端電壓信號(hào)的狀態(tài)。<p>若無(wú)輸出電壓，應(yīng)首先檢查電源電壓是否正常，是否符合供電要求，電源與壓力變送器及負(fù)載設(shè)備之間有無(wú)接線錯(cuò)誤。如果壓力變送器接線端子上無(wú)電壓或極性接反均可造成變送器無(wú)電壓信號(hào)輸出。<p>線路板接插件有無(wú)接觸不良現(xiàn)象，可采取對(duì)照正常儀表的測(cè)量電壓與故障儀表對(duì)應(yīng)的測(cè)量電壓相比較的方法，確定故障點(diǎn)。必要的情況下可更換有故障的放大器板。<p>狀況二：接通電源，在給定輸入壓力信號(hào)后，若壓力變送器輸出過(guò)高或過(guò)低，且改變輸入壓力信號(hào)和調(diào)整零點(diǎn)、量程螺釘時(shí)輸出均無(wú)反應(yīng)。<p>對(duì)于這類故障，除檢查壓力變送器測(cè)量部分敏感部件有無(wú)異常外，應(yīng)檢查壓力變送器放大器板上“振蕩控制電路部分”工作正常與否。其次檢查放大器板上各運(yùn)算放大器的工作狀況;各部分的元器件有無(wú)損壞問(wèn)題等。此類故障需要更換放大器板。陜西高溫型壓力變送器廠家供應(yīng)</p><p style="text-indent:25px">西安倫騫電器設(shè)備有限責(zé)任公司創(chuàng)立于2020-04-03，是一家生產(chǎn)型公司。公司業(yè)務(wù)涵蓋雷達(dá)料位計(jì)，雷達(dá)物位計(jì)，壓力變送器，溫度變送器等，價(jià)格合理，品質(zhì)有保證。公司將不斷增強(qiáng)企業(yè)重點(diǎn)競(jìng)爭(zhēng)力，努力學(xué)習(xí)行業(yè)先進(jìn)知識(shí)，遵守行業(yè)規(guī)范，植根于儀器儀表行業(yè)的發(fā)展。公司立足于全國(guó)市場(chǎng)，依托強(qiáng)大的研發(fā)實(shí)力，融合世界前沿的技術(shù)理念，飛快響應(yīng)客戶的變化需求。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/1054811.html</p></div></div></div></div></div><div id="dskm23k" class="page-right twoColRt"><div id="hgd83tq" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="oxz78ub" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)</p></a></div><div 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