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class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439246718750/8791737.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="924kg2f" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價格要求：</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)品關鍵詞：</span>電容式壓力變送器**,壓力變送器</p><p><span>***更新：</span>2020-08-14 21:19:12</p><p><span id="click" >瀏覽次數(shù)：3次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="s8roimd" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">西安倫騫電器設備有限責任公司</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: </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="8snaufh" class="page-proshow02"><p class="title">詳細說明</p><div id="vikcwx7" class="box"><p><p> 壓力變送器的零點漂移: </p> <p> 壓力變送器的零點漂移是影響壓力變送器性能的重要指標，電容式壓力變送器**，應受到大家的重視。壓力變送器的零點漂移是指，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，因為晶體管是溫度的敏感器件，當溫度變化時，其參數(shù)UBE、β、ICBO都將發(fā)生變化，zui終導致放大電路靜態(tài)工作點產(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)進行檢定的，這樣就會形成一個壓力差，造成壓力變送器的零點漂移。 </p> <p> 第三種情況，電容式壓力變送器**，當壓力變送器管線內(nèi)氣體濕氣較大，且有負壓時，易造成零點漂移。 </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)生零點漂移。 </p> <p> 在壓力變送器的使用壽命期間，如果出現(xiàn)零點漂移的狀況，可以發(fā)回生產(chǎn)廠家，電容式壓力變送器**，進行重新標定，以確保壓力變送器的測量精度。電流輸出是壓力變送器常用的一種信號輸出方式，這與它的性能特點有關。電容式壓力變送器**</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="電容式壓力變送器**,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439246718750/8791737.png"></div><p> 壓力變送器輸出電流波動，也肯能與其現(xiàn)場工況有關。像是在管道中的壓力測量，應重點檢查導壓管路，壓力變送器測量室內(nèi)是否有氣體(測量液體及蒸汽時)或液體(測量氣體時)；導壓管的伴熱溫度過高或過低，使被測介質(zhì)出現(xiàn)汽化或冷凝，都是造成壓力變送器輸出電流波動的原因之一，可通過排污閥進行排放,或通過壓力變送器測量室的排空絲堵進行排放。導壓管內(nèi)有雜質(zhì),污物出現(xiàn)似堵非堵狀態(tài)，也會造成壓力變送器輸出電流波動,解決辦法就是排污。壓力變送器輸出電流波動或不穩(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題引發(fā)的波動。例如，配電器、安全柵故障，安裝專精振動大，有電磁干擾等問題，都有可能造成壓力變送器輸出電流的波動。防爆壓力變送器用途壓力傳感器直接感測被測液位壓力，不受介質(zhì)起泡、沉積的影響。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="電容式壓力變送器**,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439390527344/2017285.png"></div><p> 選擇怎樣的勵磁電壓：輸出信號的類型決定選擇怎么樣的勵磁電壓。許多放大變送器有內(nèi)置的電壓調(diào)節(jié)裝置，因此其電源電壓范圍較大。有些奕送器是定量配置，需要一個穩(wěn)定的工作電壓，因此，能夠得到的一個工作電壓決定是否采用帶有調(diào)節(jié)器的傳感器，選擇傳送器時要綜合考慮工作電壓與系統(tǒng)造價。 </p> <p> 是否需要具備互換性的變送器：確定所需的變送器是否能夠適應多個使用系統(tǒng)。一般來講，這一點很重要。如果產(chǎn)品具有良好的互換性，那么即使是改變所用的變送器，也不會影響整個系統(tǒng)的效果。 </p> <p> 變送器超時工作后需要保持穩(wěn)定度：大部分變送器在經(jīng)過超時工作后會產(chǎn)生“漂移”，因此很有必要在購買前了解變送器的穩(wěn)定度，這種預先的工作能減少將來使用中會出現(xiàn)的種種麻煩。 </p> <p> 變送器的封裝：變送器的封裝，尤其往往容易忽略是它的機架，然而這一點在以后使用中會逐漸暴露出其缺點。在選購傳送器傳一定要考慮到將來變送器的工作環(huán)境，濕度如何，怎樣安裝變送器，會不會有強烈的撞擊或振動等。 </p> <p> 在變送器與其它電子設備間采用怎樣的連接：是否需要采用短距離連接？若是采用長距離連接，是否需要采用一個連接器？ </p> <p> <br /> </p><p> 壓力變送器的內(nèi)部結(jié)構主要指得是其殼體內(nèi)部的各種元器件，這也是壓力變送器性能好壞的主要因素。主要包括：固定銅片、集成芯片、隔離環(huán)、擴散硅芯體、阻尼等。 </p> <p> 固定銅片： </p> <p> 在技術較為成熟、品質(zhì)較好的壓力變送器產(chǎn)品中，都會在內(nèi)部添加固定銅片。固定銅片能夠很好的提高絕緣度、抗震性和接地穩(wěn)定性。部分廉價壓力變送器為節(jié)約成本則不會添加固定銅片。 </p> <p> 集成芯片： </p> <p> 集成芯片的品質(zhì)能夠很好的保障壓力變送器的抗干擾性和穩(wěn)定性。良好壓力變送器的集成芯片都是采用國際先進的集成芯片，散件拼裝的電路芯片抗干擾性差，穩(wěn)定性差。 </p> <p> 隔離環(huán)： </p> <p> 壓力變送器添加隔離環(huán)能夠提高產(chǎn)品的絕緣度，對壓力變送器起到很好的保護作用。 </p> <p> 擴散硅芯體： </p> <p> 先進的壓力變送器采用進口國際先進硅晶圓擴散硅芯體，這是壓力變送器高精度高、長期穩(wěn)定性的保障。壓力變送器的價格差別主要體現(xiàn)在這個上邊。劣質(zhì)芯體長期穩(wěn)定性差，也不能保證壓力變送器的測量精度。 </p> <p> 阻尼： </p> <p> 在壓力變送器內(nèi)部添加阻尼，為的是提高其抗沖擊的性能，更好的對壓力變送器內(nèi)部其他結(jié)構進行防護，避免瞬間的過壓對壓力變送器造成沖擊損壞。起到很好的保護作用。 </p> <p> <br /> </p> <p> <br /> 大氣壓力變送器指的是，能將大氣重量轉(zhuǎn)換為電信號進行輸出，并為我們提供查看數(shù)據(jù)的儀器儀表。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="電容式壓力變送器**,壓力變送器" src="https://tyunfile.71360.com/UploadFile/xalunqian/637328439707236328/5737160.png"></div><p> 壓力變送器與差壓變送器的差異： </p> <p> 在工業(yè)自動化來領域，壓力變送器與差壓變送器都是不可缺少的一種測量儀表。我們就來分析一下壓力變送器和差壓變送器相同與不同之處。 </p> <p> 壓力變送器與差壓變送器的相同點： </p> <p> 工作原理相同：壓力變送器與差壓變送器都是通過壓阻效應產(chǎn)生的電壓信號，經(jīng)過放大、零點和靈敏度溫度補償來實現(xiàn)其終的測量。 </p> <p> 輸出信號相同：不管是壓力變送器還是差壓變送器，都能進行4～20 mA 的電流輸出、RS485 數(shù)字信號輸出和0～10 VDC、0～5 VDC等電壓信號輸出。 </p> <p> 壓力變送器與差壓變送器的不同點： </p> <p> 壓力端的不同：壓力變送器只能測量一個壓力端的壓力，而差壓變送器可以測量兩個壓力點的壓力，兩者壓力相減，正壓端壓力減負壓端壓力得出壓力差值。 </p> <p> 連接方式的不同：壓力變送器一般采用的都是螺紋連接，差壓變送器除了可采用螺紋連接，更多的則選用寶塔嘴和快接口的連接方式，可直接接相應直徑的軟管。安裝更加方便。擴散硅壓力變送器高準確度、高穩(wěn)定性、選用進口原裝傳感器，線性好，溫度穩(wěn)定性高。防爆壓力變送器用途</p><p style="text-indent:25px">變送器中傳感元件的自重即會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。電容式壓力變送器**</p><p> 壓力變送器的氣體壓力測量： </p> <p> 一般壓力變送器的適用于測量氣體、液體等與變送器材質(zhì)兼容的介質(zhì)。壓力變送器是如何測量氣體介質(zhì)的。壓力變送器對于氣體可進行絕壓、負壓和表壓的測量。氣體的壓力簡單的說就是氣體本身對于容器壁的壓力。很多物理和化學特性都與壓力有關，比如氣體的沸點、熔點和蒸氣壓，熱力學，動力學等。所以說壓力變送器對于壓力氣體的測量是具有重要意義的。在壓力變送器的單晶硅片上擴散一個惠斯通電橋，當管道或者容器內(nèi)的氣體對壓力變送器進行施壓，使得壓力變送器橋壁電阻值發(fā)生變化（壓阻效應），這樣就產(chǎn)生一個差動電壓信號，這個信號在經(jīng)過**的放大器，終將測得的量程相對應的信號轉(zhuǎn)化成標準的電流、電壓或者數(shù)字信號。這就是壓力變送器如何對氣體進行測量的一個過程。壓力變送器對于氣體的測量尤其是蒸汽或其他高溫氣體進行測量的時候，需要注意不要讓高溫氣體的溫度超過壓力變送器的工作溫度范圍，必要時，為壓力變送器添加冷卻裝置是個不錯的選擇。 </p> <p> <br /> 電容式壓力變送器**</p><p style="text-indent:25px">西安倫騫電器設備有限責任公司注冊資金30-50萬元，是一家擁有5~10人***員工的企業(yè)。公司業(yè)務涵蓋[ "雷達料位計", "雷達物位計", "壓力變送器", "溫度變送器" ]等，價格合理，品質(zhì)有保證。公司注重以質(zhì)量為中心，以服務為理念，秉持誠信為本的理念，打造儀器儀表質(zhì)量品牌。公司憑借深厚技術支持，年營業(yè)額度達到50-100萬元，并與多家行業(yè)**公司建立了緊密的合作關系。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/917553.html</p></div></div></div></div></div><div id="xvxpm2c" class="page-right twoColRt"><div 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