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class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265025732422/1754567.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="3wdxeie" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265025732422/1754567.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="oifspy8" 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>產品關鍵詞：</span>雅安溫度儀表推薦,溫度儀表</p><p><span>***更新：</span>2020-07-10 01:22:01</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="yszby3u" 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="8s8s3jd" class="page-proshow02"><p class="title">詳細說明</p><div id="bvsphqm" class="box"><p><p style="text-indent:25px">根據(jù)導體電阻隨溫度而變化的規(guī)律來測量溫度的溫度儀表。**常用的電阻溫度計都采用金屬絲繞制成的感溫元件，主要有鉑電阻溫度計和銅電阻溫度計，在低溫下還有碳、鍺和銠鐵電阻溫度計，雅安溫度儀表推薦，雅安溫度儀表推薦。精密的鉑電阻溫度計是目前**精確的溫度計，溫度覆蓋范圍約為14～903K，其誤差可低到萬分之一攝氏度，它是能復現(xiàn)國際實用溫標的基準溫度計。我國還用一等和二等標準鉑電阻溫度計來傳遞溫標，用它作標準來檢定**溫度計和其他類型的溫度計。分為金屬電阻溫度計和半導體電阻溫度計，都是根據(jù)電阻值隨溫度的變化這一特性制成的。金屬溫度計主要有用鉑、金、銅、鎳等純金屬的及銠鐵、磷青銅合金的；半導體溫度計主要用碳、鍺等。電阻溫度計使用方便可靠，雅安溫度儀表推薦，已大范圍應用。它的測量范圍為-260℃至600℃左右。雅安溫度儀表推薦</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="雅安溫度儀表推薦,溫度儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265025732422/1754567.jpg"></div><p style="text-indent:25px">根據(jù)物體的全波長輻射能與溫度之間的關系來測量溫度，由光學系統(tǒng)、探測器、測量儀表和用于冷卻及煙塵防護的輔助裝置組成。被測物體向傳感器方向發(fā)射的輻射經過透鏡聚焦到探測元件上，所產生的相應信號可由測量儀表顯示或記錄。探測器通常采用響應波段較寬的熱電堆。為提高靈敏度，熱電堆往往需要由十幾支、幾十支的溫差電偶串聯(lián)組成，因而熱慣性較大，時間常數(shù)一般為秒級以上。此外熱電堆的基準端溫度應保持恒定或采取自動溫度補償措施。光學系統(tǒng)和探測元件對光譜輻射的響應有選擇性，不可能完全接收全波長的輻射，因此這種輻射溫度計也可稱為寬帶輻射溫度計。全輻射高溫計的優(yōu)點是結構簡單、使用方便、性能穩(wěn)定、可以自動記錄和遠距離傳送信號等。測溫范圍為100～2000℃,測溫誤差***值為8～12℃。雅安溫度儀表推薦</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="雅安溫度儀表推薦,溫度儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265029736328/6657115.jpg"></div><p style="text-indent:25px">氣體溫度計：利用一定質量的氣體作為工作物質的溫度計。用氣體溫度計來體現(xiàn)理想氣體溫標為標準溫標。用氣體溫度計所測得的溫度和熱力學溫度相吻合。氣體溫度計是在容器里裝有氫或氮氣（多用氫氣或氦氣作測溫物質，因為氫氣和氦氣的液化溫度很低，接近于***零度，故它的測溫范圍很廣），它們的性質可外推到理想氣體。這種溫度計有兩種類型：定容氣體溫度計和定壓氣體溫度計。定容氣體溫度計是氣體的體積保持不變，壓強隨溫度改變。定壓氣體溫度計是氣體的壓強保持不變，體積隨溫度改變。</p><p style="text-indent:25px">雙金屬溫度計：雙金屬溫度計是一種測量中低溫度的現(xiàn)場檢測儀表?？梢灾苯訙y量各種生產過程中的-80℃~+500℃范圍內液體蒸汽和氣體介質溫度。雙金屬溫度計的工作原理是利用二種不同溫度膨脹系數(shù)的金屬，為提高測溫靈敏度，通常將金屬片制成螺旋卷形狀，當多層金屬片的溫度改變時，各層金屬膨脹或收縮量不等，使得螺旋卷卷起或松開。由于螺旋卷的一端固定而另一端和一可以自由轉動的指針相連，因此，當雙金屬片感受到溫度變化時，指針即可在一圓形分度標尺上指示出溫度來。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="雅安溫度儀表推薦,溫度儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265025703125/9254906.jpg"></div><p style="text-indent:25px">利用溫差電偶來測量溫度的溫度計。將兩種不同金屬導體的兩端分別連接起來，構成一個閉合回路，一端加熱，另一端冷卻，則兩個接觸點之間由于溫度不同，將產生電動勢，導體中會有電流發(fā)生。因為這種溫差電動勢是兩個接觸點溫度差的函數(shù)，所以利用這一特性制成溫度計。若在溫差電偶的回路里再接入一種或幾種不同金屬的導線，所接入的導線與接觸點的溫度都是均勻的，對原電動勢并無影響，通過測量溫差電動勢來求被測的溫度，這樣就構成了溫差電偶溫度計。這種溫度計測溫范圍很大。例如，銅和康銅構成的溫差電偶的測溫范圍在200～400℃之間；鐵和康銅則被使用在200～1000℃之間；由鉑和鉑銠合金（銠10%）構成的溫差電偶測溫可達千攝氏度以上；銥和銥銠（銠50%）可用在2300℃；若用鎢和鉬（鉬25%）則可高達2600℃。成都溫度儀表供應</p><p style="text-indent:25px">雅安溫度儀表推薦</p><p style="text-indent:25px">儀器儀表行業(yè)本身是一個投入，產出周期較長的行業(yè)，所以作為業(yè)內廠家，一方面要尋找中、短期市場熱點，另一方面也要在產品、技術研發(fā)方面有長遠的規(guī)劃;一些中低檔產品已具有規(guī)模優(yōu)勢和國際市場競爭力。中國已成為[ "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" ]等產品的生產和出口大國，其他儀器設備等產品的出口也開始取得突破。儀器儀表應用領域***，覆蓋了研發(fā)、銷售計算機軟硬件;計算機系統(tǒng)集成;銷售電子產品、儀器儀表、電氣設備、機械設備、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)星地面接收設備)、醫(yī)療器械(***一類)、實驗設備、化工產品(不含危險化學品)、五金交電、照明設備。等各方面，在國民經濟建設各行各業(yè)的運行過程中承擔著把關者和指導者的任務，儀器儀表制造行業(yè)可以分為通用儀表儀器制造、**儀器儀表制造、鐘表與計時儀器制造、光學儀器制造和衡器制造。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)生產過程自動控制中的氣動調節(jié)儀表，和電動調節(jié)儀表，以及集散型儀表控制系統(tǒng)也皆屬于儀器儀表。雅安溫度儀表推薦</p><p style="text-indent:25px">成都皖川科技有限公司于2011-12-30成立，注冊資本100-200萬元元，現(xiàn)有專業(yè)技術人員51~100人人，各種專業(yè)人員齊備。致力于創(chuàng)造***的產品與服務，以誠信、敬業(yè)、進取為宗旨，以建皖纜明星產品為目標，努力打造成為同行業(yè)中具有影響力的企業(yè)。公司以用心服務為**價值,希望通過我們的專業(yè)水平和不懈努力,將研發(fā)、銷售計算機軟硬件;計算機系統(tǒng)集成;銷售電子產品、儀器儀表、電氣設備、機械設備、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)星地面接收設備)、醫(yī)療器械(***一類)、實驗設備、化工產品(不含危險化學品)、五金交電、照明設備。等業(yè)務進行到底。成都皖川科技始終以質量為發(fā)展，把顧客的滿意作為公司發(fā)展的動力，致力于為顧客帶來***的[ "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" ]。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/552370.html</p></div></div></div></div></div><div id="x33fug3" class="page-right twoColRt"><div id="mgtvx2d" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="2jn3xeg" 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" class="vcenter" 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