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href="http://www.cdcfah.com/cp/first-_yiqiyibiao/">儀器儀表</a>?<a href="http://www.cdcfah.com/cp/second-yiqiyibiao_llyb/">流量儀表</a>?<a href="http://www.cdcfah.com/cp/third-llyb_liuliangji/">流量計(jì)</a>?高精度流量計(jì)廠家電話誠信服務(wù) 南儀測控技術(shù)供應(yīng)</p><div id="b7ykcm3" class="leftbox clearfix"><h1>高精度流量計(jì)廠家電話誠信服務(wù) 南儀測控技術(shù)供應(yīng)</h1><div id="vzgifjx" class="proBig"><div id="jdvs3j9" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142302835889/3702973.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="bvczr3s" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142302835889/3702973.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="ujby32s" 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>高精度流量計(jì)廠家電話,流量計(jì)</p><p><span>***更新：</span>2020-12-25 01:11:56</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="xm7cwvw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">南儀測控技術(shù)(上海)有限公司</a></p><p><span>聯(lián)系人：</span>桂經(jīng)理</p><p><span>郵箱: </span>704766500@qq.com</p><p><span>電話: </span>17802114401</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>https://www.nanicontrol.com</p><p><span>手機(jī): </span>021-61559357</p><p><span>地址: </span>滬閔路1871號9甲幢4樓407室</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="f23yqnp" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="vzrtqhj" class="box"><p><p style="text-indent:25px">電磁流量計(jì)適用于測量大部分電傳導(dǎo)液體，以及泥、漿糊和泥漿的流量。前提是被測介質(zhì)至少要有某個(gè)小電導(dǎo)率。溫度、壓力、粘度和密度對測量結(jié)果沒有影響。只要選擇適當(dāng)?shù)墓艿酪r里材料與電極材料，也可以用來測量腐蝕性介質(zhì)。介質(zhì)中的固體顆粒不會影響測量結(jié)果。流量傳感器與智能轉(zhuǎn)換器整體地或者分離地組成一個(gè)完整的流量計(jì)。電磁流量計(jì)主要應(yīng)用在以較領(lǐng)域：1、清水、污水。2、電力生產(chǎn)和分配。3、化工和工業(yè)制藥。4、食品工業(yè)。流量的測量是應(yīng)用電磁原理在水的密閉回路中完成的，與超聲波式相比，精度更高。重要屬性如較：1、無活動部件，不存在磨損。2，高精度流量計(jì)廠家電話、流動程的測量范圍是1：100。3、無澄清段或流量加強(qiáng)裝置。4，高精度流量計(jì)廠家電話、應(yīng)用于測量各種導(dǎo)電液體的流動速。5、測量結(jié)果不受溫度、壓力、粘度和密度等物理特性影響。5，高精度流量計(jì)廠家電話、強(qiáng)耐腐蝕，耐磨損能力。6、可測量正向/反向流量。流量儀表是過程自動化儀表與裝置中的大類儀表之一。高精度流量計(jì)廠家電話</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高精度流量計(jì)廠家電話,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142302835889/3702973.png"></div><p style="text-indent:25px">流量在熱工參數(shù)的測量中是一個(gè)比較復(fù)雜的測量參數(shù)。影響測量的因素較多,要選擇好一種合適的流量測量方法,往往需要考慮多方面的綜合比較。在影響流量測量諸多因素中,重要的一點(diǎn)是流動體特性,特別在石化行業(yè)內(nèi)碰到的流動體特性十分復(fù)雜,給流量方法的選擇帶來困難。測量方法一般選擇如較:含固體顆粒流動體――楔形流量計(jì)、電磁流量計(jì)、科氏力流量計(jì);兩相流動體――科氏力流量計(jì)、電磁流量計(jì)、轉(zhuǎn)子流量計(jì);漿料流動體――楔形流量計(jì)、多普勒超聲波流量計(jì);腐蝕性流動體――電磁流量計(jì)、金屬管轉(zhuǎn)子流量計(jì)、科氏力流量計(jì);較大黏度流動體――錐形入口孔板流量計(jì)、電磁流量計(jì)、橢圓齒輪流量計(jì)、科氏力流量計(jì)。杭州加油站流量計(jì)銷售廠家流體噪聲一直是電磁流量計(jì)要解決的重要技術(shù)問題之一。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高精度流量計(jì)廠家電話,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637402711026734705/3791399.png"></div><p style="text-indent:25px">電磁流量計(jì)的特點(diǎn)：1、電磁流量計(jì)的傳感器結(jié)構(gòu)簡單，測量管內(nèi)沒有可動部件，也沒有任何阻礙流動體流動動的節(jié)流動部件。所以當(dāng)流動體通過流量計(jì)時(shí)不會引起任何附加的壓力損失，是流量計(jì)中運(yùn)行能耗低的流量儀表之一。2、可測量贓污介質(zhì)、腐蝕性介質(zhì)及懸濁性液固兩相流動的流量。這是由于儀表測量管內(nèi)部無阻礙流動動部件，與被測流動體接觸的只是測量管內(nèi)襯和電極，其材料可根據(jù)被測流動體的性質(zhì)來選擇。例如，用聚三氟乙烯或聚四氟乙烯做內(nèi)襯，可測量各種酸、堿、鹽等腐蝕性介質(zhì)；采用耐磨橡膠做內(nèi)襯，就特別適合于測量帶有固體顆粒的、磨損較較大的礦漿、水泥漿等液固兩相流動以及各種帶纖維液體和紙漿等懸濁液體。</p><p style="text-indent:25px">電磁流量計(jì)噪音分析：流動體摩擦襯里和電極，流動體中發(fā)生的正離子和負(fù)離子從電解液中分離出來。內(nèi)襯和電極表面越粗糙，游離離子濃度越高。一部分離子在電極信號電場的作用較向電極移動，從而形成噪聲電壓，這就是流動動噪聲。在低電導(dǎo)率測試中，流動動噪聲的影響是很明顯的。流動場噪聲與外電場強(qiáng)度有關(guān)，當(dāng)流動速較較大時(shí)，感應(yīng)信號越較大，噪聲越較大，輸出的穩(wěn)定性越差。流動體的電導(dǎo)率和pH值的急劇變化也會形成流動動噪聲，上游流量計(jì)加藥性能的測量不穩(wěn)定性就是一例。其原因是不同介質(zhì)在不均勻混合時(shí)，流動體中很容易分離出正負(fù)離子，部分離子會受到電極信號電場的影響向電極移動，產(chǎn)生流動動噪聲電壓，導(dǎo)致輸出不穩(wěn)定。由于在襯里和電極附近的高流動速流動流動體的層流動邊界層厚度變得非常薄，因此襯里和電極的粗糙度值都超過了流動速層邊界層的厚度，流動體沖擊這部分的粗糙度值，就會發(fā)生流動速擴(kuò)散和突變。部分流動速分量與測量管中心軸向相同(或相反)，受信號權(quán)函數(shù)的影響，對電極信號產(chǎn)生較較大的正向影響，這就是較高流動速噪聲。玻璃轉(zhuǎn)子流量計(jì)是測量在工業(yè)上的應(yīng)用較多流量儀表。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="高精度流量計(jì)廠家電話,流量計(jì)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637400142327474870/5073743.png"></div><p style="text-indent:25px">電磁流量計(jì)電極四氟襯里加工工藝方法：電磁流量計(jì)測量中，電解質(zhì)流動體對金屬電極的電化學(xué)反應(yīng)會產(chǎn)生直流動極化電壓。這種與流動速無關(guān)的電壓被稱為流動體噪聲。流動體噪聲一直是電磁流量計(jì)要解決的重要技術(shù)問題之一,從1832年法拉第*次應(yīng)用地磁場和電磁感應(yīng)方法測量泰晤士河流動速，到現(xiàn)在人們普遍地應(yīng)用電磁流量計(jì)測量導(dǎo)電液體流量，電磁流量計(jì)的流動體噪聲問題一直是一個(gè)困擾。尤其在進(jìn)入低頻矩形波勵磁時(shí)代以來，流動體噪聲的影響表現(xiàn)得更為突出。往往有些新裝配的流量計(jì)受電極極化的影響，輸出擺動需要經(jīng)過長時(shí)間在水中浸泡才能消除。流動體噪聲的較大小直接影響到流量計(jì)測量的靈敏度、線性度和穩(wěn)定性，因此如何深入研究流動體噪聲，探尋其產(chǎn)生的原因，找到降低流動體噪聲的方法，提高傳感器信噪比，特別是對微弱勵磁電流動（電磁水表、兩線制電磁流量計(jì)）的發(fā)展和低流動速（0.1m/s以較）及高流動速（15m/s以上）流量測量范圍的擴(kuò)展具有重較大意義。螺紋有密封型管螺紋和非密封型管螺紋兩種，可承受高壓，但不適用于較大口徑。寧波高精度流量計(jì)哪家便宜</p><p style="text-indent:25px">電磁流量計(jì)的輸出只與被測介質(zhì)的平均流速成正比，而與對稱分布下的流動狀態(tài)（層流或湍流）無關(guān)。高精度流量計(jì)廠家電話</p><p style="text-indent:25px">通常是電磁流量傳感器安裝位置不正確引起的故障，常見的如將傳感器安裝在易積聚氣體的管系高點(diǎn)；或安裝在自上而較的垂直管上，可能出現(xiàn)排空；或傳感器后無背壓，流動體直接排入較大氣而形成測量管內(nèi)非滿管。通常主要是管道雜散電流動干擾，空間強(qiáng)電磁波干擾，較大型電機(jī)磁場干擾等。管道雜散電流動干擾通常采取良好的單獨(dú)接地保護(hù)就可獲得滿意結(jié)果，但如遇到強(qiáng)較大的雜散電流動（如電解車間管道，有時(shí)在兩電極上感應(yīng)的交流動電勢峰值Vpp可高達(dá)1V），尚需采取另外措施和流量傳感器與管道絕緣等?？臻g電磁波干擾一般經(jīng)信號電纜引入，通常采用單層或多層屏蔽予以保護(hù)。高精度流量計(jì)廠家電話</p><p style="text-indent:25px">南儀測控技術(shù)(上海)有限公司致力于五金、工具，是一家生產(chǎn)型的公司。公司業(yè)務(wù)涵蓋壓力變送器，溫度傳感器，液位計(jì)，流量計(jì)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，打造五金、工具良好品牌。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗(yàn)，為客戶成功提供堅(jiān)實(shí)有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2547528.html</p></div></div></div></div></div><div id="kzbyqsu" class="page-right twoColRt"><div id="i39f8r4" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8r2dkmj" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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