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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ihnjfbp" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637044263648779297/9819656.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="o3h2u3t" 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>四川省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>內(nèi)江流量儀表報價,流量儀表</p><p><span>***更新：</span>2020-07-23 16:18:08</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="38ajuvw" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">成都皖川科技有限公司</a></p><p><span>聯(lián)系人：</span>朱成生</p><p><span>郵箱: </span>cdwckjgs@sina.com</p><p><span>電話: </span>18755046999</p><p><span>傳真: </span>028_87463776</p><p><span>網(wǎng)址: </span></p><p><span>手機: </span>028-87463776</p><p><span>地址: </span>四川省成都市青羊區(qū)青羊萬達廣場SOHO公寓2-2-1138室</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="2xdz3jt" class="page-proshow02"><p class="title">詳細說明</p><div id="tefl3k7" class="box"><p><p style="text-indent:25px">流量測量的方法很多，儀表的種類也很多，結(jié)合流量的定義，常用的流量測量方法可歸納為容積法，流速法和質(zhì)量流量法等。如果流體是以固定體積從流量計中逐次排放流出，則對排放的次數(shù)計數(shù)，就可以求得通過儀器的流體總量。若測量排放的頻率，內(nèi)江流量儀表報價，即可顯示流量。這種方法叫做容積法。如刮板流量計。橢圓齒輪流量計和標準體積管等，都是按此原理工作的，內(nèi)江流量儀表報價，內(nèi)江流量儀表報價。這類儀表所顯示的是體積流量的總量。容積法的特點是流動狀態(tài)對測量的影響較小，精確度較高，這類流量計一般不宜用于測量高溫高壓流體和臟污介質(zhì)的流量，測量流量的上限也不大。內(nèi)江流量儀表報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)江流量儀表報價,流量儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044263648779297/9819656.jpg"></div><p style="text-indent:25px">化工生產(chǎn)中所處理的物料大部分是流體，它們通過動力設(shè)備，如鼓風機、泵等，在管道中輸送。工業(yè)上用于測量流體流量的儀表叫做流量計或流量儀表、流量測量的重要目的有如下兩個方面； 1．流量不但是控制化工生產(chǎn)及監(jiān)督設(shè)備工況的重要參數(shù)，也是物料流動工況特征參數(shù)之一，同時對確保正常生產(chǎn)，亦有很大意義。 2．流量又是車間、工廠實行企業(yè)經(jīng)濟核算的基礎(chǔ)依據(jù)，生產(chǎn)廠要準確地測出水、蒸汽、燃料氣、原料或動力消耗的情況，以加強企業(yè)管理。因此，操作人員對流量的測量，必須給予足夠的重視。由于流量測量的目的不同，對流量測量的要求也不同。前一種則要求儀表穩(wěn)定、靈敏，后一種則要求儀表準確、可靠。內(nèi)江流量儀表報價</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)江流量儀表報價,流量儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044263648847656/9354750.jpg"></div><p style="text-indent:25px">流量儀表品種如此之多的原因就在于至今還沒找到一種對任何流體、任何量程、任何流動狀態(tài)以及任何使用條件都適用的流量儀表。流量計種類，流量計選型，流量計價格，流量計原理，流量計安裝，流量計廠家是使用者一直很關(guān)注的問題。所以在選用流量儀表時，要進行周密的分析與比較，選擇適宜的流量儀表以達到預(yù)期的測量目的。電磁流量計是根據(jù)法拉第電磁感應(yīng)定律制成的一種測量導(dǎo)電性液體的儀表。電磁流量計由傳感器、轉(zhuǎn)換器、電纜連接線三部分組成，缺一不可。如果電纜連接線很短，安裝在流量計殼體內(nèi)。</p><p style="text-indent:25px">帶打印便攜超聲波流量計具有測量精度高、一致性好、電池供電、操作簡單、攜帶方便等特點，是目前國內(nèi)體積較小、質(zhì)量較輕，真正意義上的便攜超聲波流量計。利用了低電壓、多脈沖時差原理，采用高精度和超穩(wěn)定的雙平衡信號差分發(fā)射、差分接收數(shù)字檢測技術(shù)來測量順流和逆流方向的聲波傳輸時間，根據(jù)時差計算出流速。具有穩(wěn)定性好、零點漂移小、測量精度高，量程比寬抗干擾性強等特點。當超聲波波束在液體中傳播時，液體的流動將使傳播時間產(chǎn)生微小變化，其傳播時間的變化正比于液體的流速，零流量時，兩個傳感器發(fā)射和接受聲波所需的時間完全相同；介質(zhì)流動時，逆流方向的志波傳輸時間大于水流方向的聲波傳輸時間。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="內(nèi)江流量儀表報價,流量儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044263648779297/1141047.jpg"></div><p style="text-indent:25px">根據(jù)一元流動的連續(xù)方程，當流通截面恒定時，截面上的平均流速與體積流量成正比，于是各種與流速有關(guān)的物理現(xiàn)象便可以用來建立流量計。例如：超聲波流量計、渦輪流量計、動壓測量管、漩渦流量計和節(jié)流式流量計等均屬于此類。目前流量儀表中以這類儀表**多，它們有較寬的使用條件，有用于高溫高壓流體的，也有精度較高的，有的能量損失很小，有的可適應(yīng)臟污介質(zhì)等等。使流體流動得到某種加速度的力學(xué)效應(yīng)與質(zhì)量的關(guān)系，是這種方法的物理基礎(chǔ)，按這種原理制成的流量計有質(zhì)量流量計和回轉(zhuǎn)管式流量計等。內(nèi)江流量儀表報價</p><p style="text-indent:25px">內(nèi)江流量儀表報價</p><p style="text-indent:25px">儀器儀表是用以檢出、測量、觀察、計算各種物理量、物質(zhì)成分、物性參數(shù)等的器具或設(shè)備。真空檢漏儀、壓力表、測長儀、顯微鏡、乘法器等均屬于儀器儀表。近年來，得益于機械、冶金、石化行業(yè)等儀器儀表服務(wù)領(lǐng)域經(jīng)營狀況的好轉(zhuǎn)，我國儀器儀表制造業(yè)發(fā)展一路向好。目前，[ "耐磨熱電偶", "氣體檢測儀器", "便攜式氣體報警控制器", "雙金屬溫度計" ]等產(chǎn)品的產(chǎn)量居世界前列，實驗分析儀器等中***產(chǎn)品的市場占有率不斷上升，行業(yè)技術(shù)上總體已達到的中等國際水平，少數(shù)產(chǎn)品接近或達到當前較高國際水平。研發(fā)、銷售計算機軟硬件;計算機系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機械設(shè)備、閥門、水泵、電線電纜、通訊器材(不含無線廣播電視發(fā)射及衛(wèi)星地面接收設(shè)備)、醫(yī)療器械(***一類)、實驗設(shè)備、化工產(chǎn)品(不含危險化學(xué)品)、五金交電、照明設(shè)備。產(chǎn)品***運用于工業(yè)、農(nóng)業(yè)、交通、科技、環(huán)保、**、文教衛(wèi)生、人民生活等各個領(lǐng)域，在旺盛市場需求的帶動下和國家宏觀調(diào)控政策的引導(dǎo)下，我國儀器儀表行業(yè)的發(fā)展有了長足的進步空間。從銷售廣義角度來說，儀器儀表也可具有自動控制、報警、信號傳遞和數(shù)據(jù)處理等功能，例如用于工業(yè)生產(chǎn)過程自動控制中的氣動調(diào)節(jié)儀表，和電動調(diào)節(jié)儀表，以及集散型儀表控制系統(tǒng)也皆屬于儀器儀表。內(nèi)江流量儀表報價</p><p style="text-indent:25px">成都皖川科技有限公司是一家研發(fā)、銷售計算機軟硬件;計算機系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機械設(shè)備、閥門、水泵、電線電纜、通訊器材(不含無線廣播電視發(fā)射及衛(wèi)星地面接收設(shè)備)、醫(yī)療器械(***一類)、實驗設(shè)備、化工產(chǎn)品(不含危險化學(xué)品)、五金交電、照明設(shè)備。的公司，致力于成為客戶業(yè)務(wù)創(chuàng)新、儀器儀表可信賴的合作伙伴。成都皖川科技擁有一支經(jīng)驗豐富、技術(shù)創(chuàng)新的專業(yè)研發(fā)團隊，以高度的專注和執(zhí)著為客戶提供[ "耐磨熱電偶", "氣體檢測儀器", "便攜式氣體報警控制器", "雙金屬溫度計" ]。公司堅持以技術(shù)創(chuàng)新為發(fā)展引擎，以客戶滿意為動力，目前擁有51~100人專業(yè)人員，年營業(yè)額達到50-100萬元。成都皖川科技始終關(guān)注儀器儀表行業(yè)。海納百川，有容乃大，國內(nèi)外同行的智慧都是促使我們前行的力量。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/688229.html</p></div></div></div></div></div><div id="wyzv2aw" class="page-right twoColRt"><div id="fdevrio" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="x37eawn" 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配件哪家強信息推薦自業(yè)物資供應(yīng)" 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