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class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332787738417969/1691254.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="u0ocijj" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332787738417969/1691254.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="vdq3gxf" 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>西安無線雷達(dá)料位計(jì),料位計(jì)</p><p><span>***更新：</span>2020-09-01 01:48:30</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="locv6f8" 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="bywjzcq" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zvey92o" class="box"><p><p> 高頻雷達(dá)物位計(jì)測量原理： </p> <p> 發(fā)射能量很低的極短微波脈沖通過天線系統(tǒng)發(fā)射并接收。雷達(dá)波以光速運(yùn)行。運(yùn)行時(shí)間可以通過電子部件被轉(zhuǎn)換成物位信號。一種特殊的時(shí)間延伸方法可以確保極短時(shí)間內(nèi)穩(wěn)定和精確的測量。即使工況比較復(fù)雜的情況下，西安無線雷達(dá)料位計(jì)，存在虛假回波，用zui新的微處理技術(shù)和調(diào)試軟件也可以準(zhǔn)確的分析出物位的回波。 </p> <p> 輸入： </p> <p> 天線接收反射的微波脈沖并將其傳輸給電子線路，微處理器對此信號進(jìn)行處理，識別出微脈沖在物料表面所產(chǎn)生的回波。正確的回波信號識別由智能軟件完成，精度可達(dá)到毫米級。距離物料表面的距離D與脈沖的時(shí)間行程T成正比： </p> <p> D=C ×T/2 其中C為光速； </p> <p> 因空罐的距離E已知，西安無線雷達(dá)料位計(jì)，則物位L為：L=E-D </p> <p> 輸出： </p> <p> 通過輸入空罐高度E 零點(diǎn)），西安無線雷達(dá)料位計(jì)，滿罐高度F 滿量程）及一些應(yīng)用參數(shù)來設(shè)定，應(yīng)用參數(shù)將自動(dòng)使儀表適應(yīng)測量環(huán)境。對應(yīng)于4～20mA輸出。很強(qiáng)防塵密封性能，即使1MPa壓力，粉塵也無法進(jìn)入。西安無線雷達(dá)料位計(jì)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安無線雷達(dá)料位計(jì),料位計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332787738417969/1691254.png"></div><p> 水泥行業(yè)雷達(dá)料位計(jì)選型事項(xiàng) ： </p> <p> 超聲波技術(shù)近幾年來發(fā)展很快，是目前應(yīng)用廣的非接觸式測量方法，特別在液位測量。在水泥廠超聲波物位測量已較普遍應(yīng)用在原料調(diào)配庫、原煤庫、熟料庫等，但超聲波必須借助于介質(zhì)傳播，如在水泥廠的儲庫物位測量通常以空氣作為傳播介質(zhì)，而空氣的溫度、濕度的變化會(huì)影響超聲波傳播速度，空氣中的粉塵也將衰減超聲波的傳播信號；當(dāng)前超聲波物位測量*用于測量塊料或顆粒狀的物料，對粉倉料位的測量，由于粉倉料位表面在下料時(shí)非常疏松，對超聲波信號有較強(qiáng)的衰減，現(xiàn)未使用。九十年代末期，在過程檢測領(lǐng)域出現(xiàn)了高性能、低價(jià)格的微波物位計(jì)即雷達(dá)料位計(jì)，所謂微波是電磁波，其穿透力強(qiáng)，傳播速度不受粉塵、蒸汽及介質(zhì)組分的影響，傳播衰減也很??；物料的溫度、壓力、密度等幾乎不影響對其準(zhǔn)確的測量；現(xiàn)有雷達(dá)料位計(jì)在天線設(shè)計(jì)和形狀確保了接受回波的能量；另外現(xiàn)場調(diào)試也十分簡單，通過**的軟件，能把正確的回波迅速找到，并立即換算為物位值。由于比超聲料位計(jì)有其更優(yōu)越的性能，近幾年來，雷達(dá)料位計(jì)迅速、大量進(jìn)入了過程檢測儀表的市場，在各行業(yè)普遍使用。在水泥行業(yè)也幾乎由雷達(dá)料位計(jì)統(tǒng)占物位測量的領(lǐng)域。阻旋式料位計(jì)聯(lián)系方式料位檢測在現(xiàn)代選煤廠生產(chǎn)自動(dòng)化過程中具有重要的作用。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安無線雷達(dá)料位計(jì),料位計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332787611914062/688802.png"></div><p> 射頻導(dǎo)納料位計(jì)在火電廠原煤倉中的應(yīng)用利用高頻技術(shù)，由電子線路產(chǎn)生一個(gè)小功率射頻信號于探頭上，探頭作為敏感元件，將來自物位介電常數(shù)引起的信號變化反饋給電子線路于這些變化包括電容量和電導(dǎo)量的變化，因而電子線路處理的是容抗和阻抗的綜合變化信號,采用相位檢測技術(shù)將這種變化檢測出來，進(jìn)行處理后改變繼電器的輸出狀態(tài)。它是在原電容測量的基礎(chǔ)上改進(jìn)為射頻導(dǎo)納測量技術(shù)，表示了當(dāng)今物位測量的新水平。可用于測量導(dǎo)電及不導(dǎo)電物體。常用有標(biāo)準(zhǔn)型、重型探頭型、耐高溫用陶瓷探頭型、堵料開關(guān)、堵煤開關(guān)等等。射頻導(dǎo)納物位儀表是一種從電容式物位測量技術(shù)發(fā)展起來的，防掛料、更可靠、更準(zhǔn)確、適用性更廣的物位控制技術(shù)，射頻導(dǎo)納中的導(dǎo)納的含義為電學(xué)中阻抗的倒數(shù)，它由電阻性成分、電容性成分、電感性成分綜合而成。而射頻即發(fā)射高頻無線電波，所以射頻導(dǎo)納物位控制技術(shù)是通過用高頻無線電波測量被測介質(zhì)導(dǎo)納來實(shí)現(xiàn)物位測量。 </p><p> 重錘式料位計(jì)機(jī)電重錘式料位計(jì)是連續(xù)測量料位計(jì)。由探測單元和控制器組成。常用于粉狀物料和粒狀物料的連續(xù)測量。探測單元安裝在料庫頂上，用鋼絲繩(鋼帶)的末端系一重錘。當(dāng)需要測量時(shí)，電動(dòng)機(jī)帶動(dòng)重錘下降，至料面時(shí)，鋼繩(帶)的張力松馳，電動(dòng)機(jī)停轉(zhuǎn)并反轉(zhuǎn)，使重錘回到庫頂。檢測鋼繩(帶)位移的距離，得出庫內(nèi)料位?？刂品矫?，檢測重錘接觸物料從而控制電動(dòng)機(jī)啟停有不同的方式?？刂破魍ǔ＿h(yuǎn)離環(huán)境惡劣的現(xiàn)場，設(shè)置在控制室，可與上位機(jī)聯(lián)網(wǎng)。重錘料位計(jì)安裝、運(yùn)行注意事項(xiàng):1)測量點(diǎn)的選擇:如料庫為中心進(jìn)料，探頭單元應(yīng)安裝在料庫半徑的1/2處，探頭與進(jìn)料口的水平距離要>1m，應(yīng)遠(yuǎn)離下料口。2)由于測量重錘上升時(shí)有擺動(dòng)，故在重錘升降時(shí)以。3)庫內(nèi)裝料時(shí)，不進(jìn)行測量，因?yàn)檫M(jìn)料可能埋錘，易造成故障。4)定時(shí)檢查清理探頭單元、鋼繩(帶)、測量錘等并定時(shí)校驗(yàn)控制器。重錘式料位計(jì)是接觸式測量，基本上不受庫內(nèi)溫度、濕度、粉塵的影響，計(jì)量精度較高而且國產(chǎn)設(shè)備的價(jià)格相對較低，有的產(chǎn)品還具有在線和離線調(diào)試的功能。但維修工作量較大，主要是因?yàn)殄N頭和鋼繩(帶)易被粉料粘裹，受粉料沖刷，造成斷繩、掉錘頭事故。目前，重錘料位計(jì)在水泥廠仍占有一定市場。音叉式料位計(jì)監(jiān)測各種固體物料，用于較輕的、干的、小粒度的介質(zhì)，例如：谷物、奶粉、水泥、石灰、煤灰。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="西安無線雷達(dá)料位計(jì),料位計(jì)" src="https://tyunfile.71360.com/WaterMark/UploadFile/xalunqian/637332787381660156/5297429.png"></div><p style="text-indent:25px">由於雷達(dá)料位計(jì)采用了上述先進(jìn)的回波處理和數(shù)據(jù)處理技術(shù)，加上雷達(dá)波本身頻率高，穿透性能好的特點(diǎn)，所以，雷達(dá)料位計(jì)具有比接觸式料位計(jì)和同類非接觸料位計(jì)更加優(yōu)良的性能。 ①可在惡劣條件下連續(xù)準(zhǔn)確地測量,采用壹體化設(shè)計(jì)，無可動(dòng)部件，不存在機(jī)械磨損，使用壽命長。具有不受大氣、蒸氣、槽內(nèi)揮發(fā)霧影響的特點(diǎn)，能用於揮發(fā)的介質(zhì)如粗苯的液位測量。 ②操作簡單，調(diào)試方便,采用非接觸式測量，不受槽內(nèi)液體的密度、濃度等物理特性的影響。 ③準(zhǔn)確安全且節(jié)省能源,測量範(fàn)圍**的測量範(fàn)圍可達(dá)0~35m，可用於高溫、高壓的液位測量。 ④無需維修且可靠性強(qiáng),功能豐富,具有虛假波的學(xué)習(xí)功能。輸入液面的實(shí)際液位，軟件能自動(dòng)地標(biāo)識出液面到天線的虛假回波，排除這些波的幹?jǐn)_。 ⑤幾乎可以測量所有介質(zhì)。電容式料位計(jì)適用于高溫高壓容器的物位測量，且測量值不受被測液體的溫度。雙攬式雷達(dá)料位計(jì)聯(lián)系方式</p><p style="text-indent:25px">射頻導(dǎo)納物位計(jì)采用模塊化設(shè)計(jì)，能夠簡潔方便地實(shí)現(xiàn)儀表設(shè)定，一旦設(shè)定完成，即可正常使用并且終身免維護(hù)。西安無線雷達(dá)料位計(jì)</p><p> 電容式料位計(jì)：電容式料位計(jì)原理是插入料倉中的電極與料倉壁之間構(gòu)成電容器，當(dāng)倉內(nèi)物料料位變化引起電容量的變化時(shí)，通過轉(zhuǎn)換電路得到相應(yīng)的控制信號。因?yàn)殡娙萘渴沁B續(xù)變化的，因此該料位計(jì)可以用作連續(xù)式料位測量，也可用作料位開關(guān)，作為報(bào)警或喂料、卸料設(shè)備的輸入信號。該料位計(jì)有造價(jià)低、無機(jī)械磨損、安裝和維修方便等特點(diǎn)。傳統(tǒng)的方式是通過調(diào)頻振蕩電路實(shí)現(xiàn)電容量到頻率的轉(zhuǎn)換，又經(jīng)限幅放大及鑒頻器的線性化，得到相應(yīng)的電壓或電流信號。若使用一段時(shí)間后電極(探頭)上粘有物料，則往往會(huì)導(dǎo)致控制器誤動(dòng)作，現(xiàn)已由傳統(tǒng)的檢測電容量發(fā)展為檢測探頭與倉壁間導(dǎo)納的方式。依據(jù)量程的大小和控制方式的不同，電極設(shè)計(jì)成桿(棒)式或鋼纜(重型鋼纜)式，可應(yīng)用于各種料倉?，F(xiàn)在的新型產(chǎn)品為全密封一體化安裝結(jié)構(gòu)，采用射頻振蕩器和數(shù)字集成電路，無運(yùn)動(dòng)機(jī)械部件，“數(shù)字標(biāo)定技術(shù)”使得用戶可以在空倉的狀態(tài)下一次完成標(biāo)定，功能齊全、性能可靠、控制及時(shí)、顯示直觀。安裝此類料位計(jì)時(shí)應(yīng)注意選取合適的安裝點(diǎn)，避開下料口；注意信號線的屏蔽和接地，防止干擾。但倉內(nèi)物料溫度、濕度、運(yùn)動(dòng)速度的變化以及物料粘掛倉壁和電極等因素的影響，引起電容介電常數(shù)的變化。西安無線雷達(dá)料位計(jì)</p><p style="text-indent:25px">西安倫騫電器設(shè)備有限責(zé)任公司致力于儀器儀表，是一家生產(chǎn)型的公司。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個(gè)細(xì)節(jié)，公司旗下雷達(dá)料位計(jì)，雷達(dá)物位計(jì)，壓力變送器，溫度變送器深受客戶的喜愛。公司秉持誠信為本的經(jīng)營理念，在儀器儀表深耕多年，以技術(shù)為先導(dǎo)，以自主產(chǎn)品為重點(diǎn)，發(fā)揮人才優(yōu)勢，打造儀器儀表良好品牌。西安倫騫電器秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實(shí)”的經(jīng)營理念，全力打造公司的重點(diǎn)競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1112167.html</p></div></div></div></div></div><div id="gr8fiq3" class="page-right twoColRt"><div id="oivz088" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="7jkhxay" 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="kbk7qse" 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