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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vumo3ax" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>杭州拉式傳感器,電氣附件</p><p><span>***更新：</span>2020-12-31 07:22:41</p><p><span id="click" >瀏覽次數(shù)：4次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="uoqdn2n" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">德而行（上海）工業(yè)自動(dòng)化有限公司</a></p><p><span>聯(lián)系人：</span>潘小姐</p><p><span>郵箱: </span>sales@deerxing.net</p><p><span>電話: </span>13671743087</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>https://www.deerxing.net</p><p><span>手機(jī): </span>021-80344222</p><p><span>地址: </span>上海市閔行區(qū)友東路358號(hào)（閔欣大廈）2號(hào)樓103B</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="aebyv7d" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="mqikx9d" class="box"><p><p style="text-indent:25px">熱電阻溫度變送器：（1）熱電阻測(cè)溫系統(tǒng)一般由熱電阻、連接導(dǎo)線和顯示儀表等組成。必須注意以下兩點(diǎn)：①熱電阻和顯示儀表的分度號(hào)必須一致②為了消除連接導(dǎo)線電阻變化的影響，杭州拉式傳感器，必須采用三線制接法。（2）電阻的外徑一般為φ1~φ8mm，至小可達(dá)φmm。與普通型熱電阻相比，它有下列優(yōu)點(diǎn)：①體積小，內(nèi)部無空氣隙，熱慣性上，測(cè)量滯后??；②機(jī)械性能好、耐振，抗沖擊；③能彎曲，便于安裝④使用壽命長。（3）端面熱電阻端面熱電阻感溫元件由特殊處理的電阻絲材繞制，杭州拉式傳感器，緊貼在溫度計(jì)端面。它與一般軸向熱電阻相比，能更正確和快速地反映被測(cè)端面的實(shí)際溫度，適用于測(cè)量軸瓦和其他機(jī)件的端面溫度，杭州拉式傳感器。（4）隔爆型熱電阻：隔爆型熱電阻通過特殊結(jié)構(gòu)的接線盒，把其外殼內(nèi)部性混合氣體因受到火花或電弧等影電阻體的斷路修理必然要改變電阻絲的長短而影響電阻值，為此更換新的電阻體為好，若采用焊接修理，焊后要校驗(yàn)合格后才能使用。變送器分為二線制和四線制兩種。杭州拉式傳感器</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州拉式傳感器,電氣附件" src="https://tyunfile.71360.com/UploadFile/deerxing/637426128685438227/3989478.png"></div><p style="text-indent:25px">傳感器是國內(nèi)外公認(rèn)的具有廣闊發(fā)展前途的高技術(shù)產(chǎn)業(yè)，它的應(yīng)用已經(jīng)滲透到諸如工業(yè)生產(chǎn)、環(huán)境保護(hù)、節(jié)能減排、航空航天、海洋探測(cè)、汽車、艦船、醫(yī)學(xué)診斷、生物工程、文物保護(hù)、災(zāi)害預(yù)測(cè)預(yù)防等人類活動(dòng)的所有重要領(lǐng)域?？梢院敛豢鋸埖卣f，從茫茫的太空，到浩瀚的海洋，以至各種復(fù)雜的工程系統(tǒng)，幾乎每一個(gè)現(xiàn)代化項(xiàng)目，都離不開各種各樣的傳感器。國產(chǎn)傳感器產(chǎn)業(yè)存在主要問題有三:一是穩(wěn)定性、可靠性、一致性差，關(guān)鍵基礎(chǔ)共性技術(shù)研究長期缺失;二是產(chǎn)業(yè)化問題未能得到很好解決，不能規(guī)模化批量生產(chǎn);三是經(jīng)營模式，市場(chǎng)機(jī)制不活，市場(chǎng)推廣應(yīng)用難度大，難以發(fā)揮資源、人才優(yōu)勢(shì)。目前，從**到地方，從部門到企業(yè)，特別是物聯(lián)網(wǎng)的興起，傳感器的重要性，傳感器對(duì)國民經(jīng)濟(jì)的貢獻(xiàn)、對(duì)**的作用、對(duì)民生工程的支撐己被普遍接受和認(rèn)可。但我國傳感器究竟向何處去?認(rèn)為傳感器必須實(shí)現(xiàn)產(chǎn)業(yè)化。即傳感器應(yīng)從樣品→產(chǎn)品→商品;有關(guān)部門的職能應(yīng)跳出項(xiàng)目→關(guān)注基礎(chǔ)→重視產(chǎn)業(yè)。杭州拉式傳感器溫度變送器經(jīng)常和一些儀表配套使用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州拉式傳感器,電氣附件" src="https://tyunfile.71360.com/UploadFile/deerxing/637426130282196599/994408.png"></div><p style="text-indent:25px">差壓變送器用于測(cè)量液體、氣體和蒸汽的液位、密度和壓力，然后將其轉(zhuǎn)變成4- 20mA DC的電流信號(hào)輸出。JT-3051DP也可以通過BRAIN手操器或CENTUM CS/μXL或HART 275手操器相互通訊，通過它們進(jìn)行設(shè)定和監(jiān)控等。顧名思義差壓變送器所測(cè)量的結(jié)果是壓強(qiáng)差，即△P=ρg△h。而由于油罐往往是圓柱形，其截面圓的面積S是不變的，那么，重力G=△P·S=ρg△h·S，S不變，G與△P成正相關(guān)。即只要準(zhǔn)確地檢測(cè)出△P值，與液位高度h成反比，與高度差△h成正相關(guān)，在溫度變化時(shí)，雖然油品體積膨脹或縮小，實(shí)際液位升高或降低，所檢測(cè)到的壓力始終是保持不變的。如果用戶需要顯示實(shí)際液位，也可以引入介質(zhì)溫度補(bǔ)償予以解決。</p><p style="text-indent:25px">變送器輸出信號(hào)與溫度變量之間有一給定的連續(xù)函數(shù)關(guān)系（通常為線性函數(shù)），早期生產(chǎn)的變送器其輸出信號(hào)與溫度傳感器的電阻值（或電壓值）之間呈線性函數(shù)關(guān)系。標(biāo)準(zhǔn)化輸出信號(hào)主要為0mA~10mA和4mA~20mA（或1V~5V）的直流電信號(hào)。不排除具有特殊規(guī)定的其他標(biāo)準(zhǔn)化輸出信號(hào)。溫度變送器按供電接線方式可分為兩線制和四線制，除RWB型溫度變送器為三線制外。變送器有電動(dòng)單元組合儀表系列的和小型化模塊式的，多功能智能型的。前者均不帶傳感器，后兩類變送器可以方便的與熱電偶或熱電阻組成帶傳感器的變送器。變送器按輸出信號(hào)類型可分為電流輸出型和電壓輸出型兩種。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="杭州拉式傳感器,電氣附件" src="https://tyunfile.71360.com/UploadFile/deerxing/637426129506576631/4779398.png"></div><p style="text-indent:25px">溫度測(cè)量器用于測(cè)量溫度的儀器。測(cè)量儀是測(cè)溫儀器類型的其中之一。根據(jù)所用測(cè)溫物質(zhì)的不同和測(cè)溫范圍的不同，有煤油溫度計(jì)、酒精溫度計(jì)、**溫度計(jì)、氣體溫度計(jì)、電阻溫度計(jì)、溫差電偶溫度計(jì)、輻射溫度計(jì)和光測(cè)溫度計(jì)、雙金屬溫度計(jì)等。溫度測(cè)量儀表按測(cè)溫方式可分為接觸式和非接觸式兩大類。通常來說接觸式測(cè)溫儀表比較簡單、可靠，測(cè)量精度較高；但因測(cè)溫元件與被測(cè)介質(zhì)需要進(jìn)行充分的熱交換，幫需要一定的時(shí)間才能達(dá)到熱平衡，所以存在測(cè)溫的延遲現(xiàn)象，同時(shí)受耐高溫材料的限制，不能應(yīng)用于很高的溫度測(cè)量。非接觸式儀表測(cè)溫是通過熱輻射原理來測(cè)量溫度的，測(cè)溫元件不需與被測(cè)介質(zhì)接觸，測(cè)溫范圍廣，不受測(cè)溫上限的限制，也不會(huì)破壞被測(cè)物體的溫度場(chǎng)，反應(yīng)速度一般也比較快；但受到物體的發(fā)射率、測(cè)量距離、煙塵和水氣等外界因素的影響，其測(cè)量誤差較大。傳感器是設(shè)備的機(jī)械系統(tǒng)和控制系統(tǒng)連結(jié)的紐帶。杭州拉式傳感器</p><p style="text-indent:25px">生產(chǎn)線設(shè)備系統(tǒng)通過傳感器將運(yùn)動(dòng)參數(shù)以及運(yùn)行狀態(tài)反饋給控制系統(tǒng)。杭州拉式傳感器</p><p style="text-indent:25px">變送器如果由兩個(gè)用來測(cè)量溫差的傳感器組成，輸出信號(hào)與溫差之間有一給定的連續(xù)函數(shù)關(guān)系。故稱為溫度變送器。變送器輸出信號(hào)與溫度變量之間有一給定的連續(xù)函數(shù)關(guān)系（通常為線性函數(shù)），早期生產(chǎn)的變送器其輸出信號(hào)與溫度傳感器的電阻值（或電壓值）之間呈線性函數(shù)關(guān)系。標(biāo)準(zhǔn)化輸出信號(hào)主要為0mA~10mA和4mA~20mA（或1V~5V）的直流電信號(hào)。不排除具有特殊規(guī)定的其他標(biāo)準(zhǔn)化輸出信號(hào)。溫度變送器按供電接線方式可分為兩線制和四線制，除RWB型溫度變送器為三線制外。變送器有電動(dòng)單元組合儀表系列的和小型化模塊式的，多功能智能型的。前者均不帶傳感器，后兩類變送器可以方便的與熱電偶或熱電阻組成帶傳感器的變送器。杭州拉式傳感器</p><p style="text-indent:25px">德而行（上海）工業(yè)自動(dòng)化有限公司擁有德而行工業(yè)自動(dòng)化主要經(jīng)營范圍為儀表閥門（調(diào)節(jié)閥、開關(guān)閥）與儀表（包含儀表管閥件），具備管道及儀表材料成套供應(yīng)能力。公司至今擁有完善的商務(wù)、技術(shù)及維保團(tuán)隊(duì)。公司自有的閥門維保中心，擁有**級(jí)的閥門及其附件的維修能力。在深入理解氣體及化工企業(yè)的需求基礎(chǔ)上，我們通過供應(yīng)鏈整合，能夠?yàn)橄嚓P(guān)企業(yè)提供一攬子的工業(yè)品解決方案。等多項(xiàng)業(yè)務(wù)，主營業(yè)務(wù)涵蓋閥門，儀器儀表，電氣附件，氣體凈化與處理。公司目前擁有專業(yè)的技術(shù)員工，為員工提供廣闊的發(fā)展平臺(tái)與成長空間，為客戶提供高質(zhì)的產(chǎn)品服務(wù)，深受員工與客戶好評(píng)。誠實(shí)、守信是對(duì)企業(yè)的經(jīng)營要求，也是我們做人的基本準(zhǔn)則。公司致力于打造***的閥門，儀器儀表，電氣附件，氣體凈化與處理。一直以來公司堅(jiān)持以客戶為中心、閥門，儀器儀表，電氣附件，氣體凈化與處理市場(chǎng)為導(dǎo)向，重信譽(yù)，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2642333.html</p></div></div></div></div></div><div id="utb7qnz" class="page-right twoColRt"><div id="uewdfpw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="pewjlkr" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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