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class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>陜西省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>蒸汽管道壓力變送器介紹,壓力變送器</p><p><span>***更新：</span>2020-08-14 21:19:11</p><p><span id="click" >瀏覽次數(shù)：6次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="tspr2mo" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">西安倫騫電器設(shè)備有限責(zé)任公司</a></p><p><span>聯(lián)系人：</span>付海飛</p><p><span>郵箱: </span>xalunqian@163.com</p><p><span>電話: </span>13891837328</p><p><span>傳真: </span>138_</p><p><span>網(wǎng)址: </span>http://xalunqian.shop.88360.com</p><p><span>手機(jī): </span>138-91837328</p><p><span>地址: </span>高新區(qū)發(fā)展大道25號軍民融合創(chuàng)新港</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="r7qiuwn" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="edfhegi" class="box"><p><p> 怎樣避免壓力變送器使用中的誤差:因?yàn)閴毫ψ兯推魇褂眠^程中的誤操作，會使得壓力變送器的測量結(jié)果產(chǎn)生誤差。壓力變送器測量誤差的大小，終將影響到整個(gè)測控系統(tǒng)的性能。為大家總結(jié)整理了壓力變送器可能造成誤差的原因，并教大家一些減少和避免誤差的有效方法。 </p> <p> 造成誤差的原因：原因一：液體管路中有氣體;原因二：磨損損失;原因三：泄露;原因四：氣體管路中存有液體;原因五：兩邊導(dǎo)壓管之間因溫差引的密度不同. </p> <p> 減少誤差的方法：方法一：壓力變送器使用現(xiàn)場的導(dǎo)壓管盡可能短些;方法二：當(dāng)壓力變送器測量液體或蒸汽時(shí)，導(dǎo)壓管向上流連接到工藝管道，其斜度應(yīng)不小于1/12;方法三：壓力變送器對于氣體測量時(shí)，導(dǎo)壓管向下連接到工藝管道，其斜度應(yīng)不小于1/12;方法四：液體導(dǎo)壓管道的布設(shè)要避免中間出現(xiàn)高點(diǎn)，氣體導(dǎo)壓管的布設(shè)要避免中間出現(xiàn)低點(diǎn);方法五：兩導(dǎo)壓管之間應(yīng)保持相同溫度;方法六：為避免磨擦影響，導(dǎo)壓管的口徑應(yīng)足夠大;方法七：充滿液體的導(dǎo)壓管中應(yīng)無氣體存在;方法八：當(dāng)使用隔離液時(shí)，兩邊導(dǎo)壓管的液體要相同;方法九：采用潔凈劑時(shí)，潔凈劑連接處應(yīng)靠近工藝管道取壓口，蒸汽管道壓力變送器介紹，潔凈劑所經(jīng)過的管路，蒸汽管道壓力變送器介紹，其長度和口徑應(yīng)相同，應(yīng)避免潔凈劑通過壓力變送器，蒸汽管道壓力變送器介紹。壓力變送器在管道上使用，管內(nèi)無介質(zhì)，壓力不為零。蒸汽管道壓力變送器介紹</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蒸汽管道壓力變送器介紹,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438789843750/8741677.png"></div><p> 壓力表與壓力變送器的區(qū)別?小編特將兩者的概念介紹如下： </p> <p> 一、什么是壓力表? </p> <p> 壓力表一般直接裝在管道中，利用內(nèi)部的膨脹管感應(yīng)壓力，同時(shí)驅(qū)動齒輪機(jī)構(gòu)使指針轉(zhuǎn)動達(dá)到顯示壓力數(shù)值的效果。 </p> <p> 二、什么是壓力變送器? </p> <p> 壓力變送器一般用于工控自動化中。安裝在需要讀取壓力的地方，可能為管道或者某個(gè)存儲罐，將氣體、液體等壓力信號轉(zhuǎn)變?yōu)殡娏骰蛘唠妷盒盘?，這些電流或者電壓信號將提供給記錄儀、調(diào)節(jié)器、報(bào)警器等儀表，從而達(dá)到測量、記錄和調(diào)節(jié)的作用。 </p> <p> 可見壓力表和壓力變送器并非一個(gè)概念，各有其應(yīng)用領(lǐng)域及測量范圍. 陜西擴(kuò)散硅壓力變送器特點(diǎn)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="蒸汽管道壓力變送器介紹,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438680429688/3508761.png"></div><p> 水壓變送器介紹： </p> <p> 通用型壓力變送器采用壓阻式壓力傳感器。壓阻式傳感器是壓力式傳感器的一種。壓阻式壓力傳感器又稱擴(kuò)散硅壓力傳感器。壓阻式壓力變送器,傳感器信號經(jīng)過信號處理電路后轉(zhuǎn)換為標(biāo)準(zhǔn)信號輸出，產(chǎn)品經(jīng)過了長期老化及穩(wěn)定性考核等工藝嚴(yán)格篩選，性能穩(wěn)定可靠。應(yīng)用于環(huán)境比較惡劣的露天現(xiàn)場，同時(shí)要求能夠現(xiàn)場觀測壓力顯示、需要零點(diǎn)遷移和量程調(diào)節(jié)的場合。應(yīng)用領(lǐng)域：適用于石油、化工、冶金、電力、輕工、紡織、建材、水文地質(zhì)、食品、醫(yī)藥、環(huán)境控制等行業(yè)的過程控制和壓力測量。 </p> <p> 水壓變送器擴(kuò)散硅跟電容變送器的對比:根本區(qū)別在于基礎(chǔ)檢出信號不同。以及相應(yīng)的電路和構(gòu)造不同;電容式變送器的基礎(chǔ)信號是電容量；擴(kuò)散硅變送器的基礎(chǔ)信號是電阻值;電容式在壓力作用下敏感元件的膜片發(fā)生位移，導(dǎo)致膜片與相鄰電極構(gòu)成的電容量發(fā)生變化而檢出壓力；擴(kuò)散硅在壓力作用下敏感元件的膜片發(fā)生位移，產(chǎn)生的力作用在擴(kuò)散硅材料商，使擴(kuò)散硅的阻值變化而檢出壓力;電容式利用的是物理性質(zhì)，所以主要受制造水平的限制；擴(kuò)散硅利用的是材料的物理性質(zhì)，所以受材料影響較大;擴(kuò)散硅在體積、價(jià)格上有優(yōu)勢；但受擴(kuò)散硅材料的穩(wěn)定性影響，壽命的精度較差。 </p><p> 壓力變送器的零點(diǎn)漂移: </p> <p> 壓力變送器的零點(diǎn)漂移是影響壓力變送器性能的重要指標(biāo)，應(yīng)受到大家的重視。壓力變送器的零點(diǎn)漂移是指，在大氣壓的狀態(tài)下，壓力變送器的輸出信號偏離零值上下波動的現(xiàn)象，也稱之為零漂。 </p> <p> 壓力變送器產(chǎn)生零點(diǎn)漂移的原因很多，如電源電壓不穩(wěn)、元器件參數(shù)變值、環(huán)境溫度變化等。其中zui主要的因素是溫度的變化，因?yàn)榫w管是溫度的敏感器件，當(dāng)溫度變化時(shí)，其參數(shù)UBE、β、ICBO都將發(fā)生變化，zui終導(dǎo)致放大電路靜態(tài)工作點(diǎn)產(chǎn)生偏移。此外，在諸因素中，zui難控制的也是溫度的變化。 </p> <p> 其次壓力變送器應(yīng)用場所海拔高，大氣壓力較低。如果壓力壓力變送器是在平原地區(qū)進(jìn)行檢定的，這樣就會形成一個(gè)壓力差，造成壓力變送器的零點(diǎn)漂移。 </p> <p> 第三種情況，當(dāng)壓力變送器管線內(nèi)氣體濕氣較大，且有負(fù)壓時(shí)，易造成零點(diǎn)漂移。 </p> <p> 還有，如果壓力變送器中存在電路虛焊的情況。也會產(chǎn)生零點(diǎn)漂移。 </p> <p> 在壓力變送器的使用壽命期間，如果出現(xiàn)零點(diǎn)漂移的狀況，可以發(fā)回生產(chǎn)廠家，進(jìn)行重新標(biāo)定，以確保壓力變送器的測量精度。壓力變送器以供給指示報(bào)警儀、記錄儀、調(diào)節(jié)器等二次儀表進(jìn)行測量、指示和過程調(diào)節(jié)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="蒸汽管道壓力變送器介紹,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328438873701172/3612278.png"></div><p> 壓力變送器的供電電壓： </p> <p> 在壓力變送器的使用過程中需要電源為其供電，通常情況下我們?nèi)粘Ｉ钪杏玫降碾妷簽?20V的交流電（AC），對于壓力變送器而言，需要連續(xù)輸出穩(wěn)定的信號，直流電(DC)在方向和大小上都是穩(wěn)定的，不會隨時(shí)間發(fā)生改變，交流電則恰恰相反。這就是大多數(shù)壓力變送器采用直流電的原因。錯(cuò)誤的選擇壓力變送器的供電電壓，會損壞壓力變送器的電路板，這也是導(dǎo)致壓力變送器出現(xiàn)故障的主要原因之一。采用多大的供電電壓是壓力變送器的一個(gè)重要的問題。 </p> <p> 壓力變送器的常規(guī)供電電壓為12～36V DC,采用此范圍的供電電壓可以有效的避免因電壓過高造成損壞，選擇此范圍的供電電壓也比較符合現(xiàn)在主流設(shè)備，方便壓力變送器與其它設(shè)備系統(tǒng)進(jìn)行對接、組合使用。習(xí)慣上24V DC的供電電壓用在壓力變送器中應(yīng)用的比較多， 24V DC能夠適應(yīng)大多數(shù)傳輸和負(fù)載需求（帶 250Ω×2個(gè)負(fù)載和 1KM 傳輸距離），高了浪費(fèi)低了應(yīng)用受限制，當(dāng)然如果有需要完全可以改變供電電壓。 </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 影響壓力變送器長期穩(wěn)定性的因素除壓力變送器本身結(jié)構(gòu)外，還有就是變送器的使用環(huán)境。壓力變送器介紹</p><p style="text-indent:25px">由于壓力變送器測量介質(zhì)的復(fù)雜性與多樣性，很多情況都對壓力變送器有一定的防腐性要求。蒸汽管道壓力變送器介紹</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，會產(chǎn)生一個(gè)差動電壓信號，這一信號經(jīng)過**放大器，將量程相對應(yīng)的信號轉(zhuǎn)換輸出一個(gè)標(biāo)準(zhǔn)的模擬信號或數(shù)字信號。 </p> <p> 硅的電阻率對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介質(zhì)，形成壓力測量的全固態(tài)結(jié)構(gòu)，使得擴(kuò)散硅壓力變送器能夠應(yīng)用更多的工況場合。 </p> <p> 擴(kuò)散硅壓力變送器作為一種高性能的壓力測量產(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)。蒸汽管道壓力變送器介紹</p><p style="text-indent:25px">西安倫騫電器設(shè)備有限責(zé)任公司注冊資金30-50萬元，是一家擁有5~10人***員工的企業(yè)。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。公司注重以質(zhì)量為中心，以服務(wù)為理念，秉持誠信為本的理念，打造儀器儀表質(zhì)量品牌。公司憑借深厚技術(shù)支持，年?duì)I業(yè)額度達(dá)到50-100萬元，并與多家行業(yè)**公司建立了緊密的合作關(guān)系。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/917552.html</p></div></div></div></div></div><div id="7gyaxof" class="page-right twoColRt"><div id="87eq3su" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x3xu7q8" 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 id="8sj2keq" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" 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