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id="2tfrycd" class="proBig"><div id="wqx27cy" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265029736328/6657115.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="gardkbd" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265029736328/6657115.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="g3su3ac" 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>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>巴中溫度儀表批發(fā),溫度儀表</p><p><span>***更新：</span>2020-06-17 05:20:03</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="f78ytcj" 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(jī): </span>028-87463776</p><p><span>地址: </span>四川省成都市青羊區(qū)青羊萬(wàn)達(dá)廣場(chǎng)SOHO公寓2-2-1138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="xm8bdf3" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="rahypbs" class="box"><p><p style="text-indent:25px">根據(jù)導(dǎo)體電阻隨溫度而變化的規(guī)律來(lái)測(cè)量溫度的溫度儀表。**常用的電阻溫度計(jì)都采用金屬絲繞制成的感溫元件，主要有鉑電阻溫度計(jì)和銅電阻溫度計(jì)，巴中溫度儀表批發(fā)，在低溫下還有碳、鍺和銠鐵電阻溫度計(jì)。精密的鉑電阻溫度計(jì)是目前**精確的溫度計(jì)，溫度覆蓋范圍約為14～903K，其誤差可低到萬(wàn)分之一攝氏度，它是能復(fù)現(xiàn)國(guó)際實(shí)用溫標(biāo)的基準(zhǔn)溫度計(jì)。我國(guó)還用一等和二等標(biāo)準(zhǔn)鉑電阻溫度計(jì)來(lái)傳遞溫標(biāo)，用它作標(biāo)準(zhǔn)來(lái)檢定**溫度計(jì)和其他類型的溫度計(jì)。分為金屬電阻溫度計(jì)和半導(dǎo)體電阻溫度計(jì)，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(jì)主要有用鉑、金、銅、鎳等純金屬的及銠鐵、磷青銅合金的；半導(dǎo)體溫度計(jì)主要用碳，巴中溫度儀表批發(fā)、鍺等。電阻溫度計(jì)使用方便可靠，巴中溫度儀表批發(fā)，已大范圍應(yīng)用。它的測(cè)量范圍為-260℃至600℃左右。巴中溫度儀表批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="巴中溫度儀表批發(fā),溫度儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265029736328/6657115.jpg"></div><p style="text-indent:25px">液體溫度計(jì)：利用作為介質(zhì)的感溫液體隨溫度變化而體積發(fā)生變化與玻璃隨溫度變化而體積變化之差來(lái)測(cè)量溫度。溫度計(jì)所顯示的示值即液體體積與玻璃毛細(xì)管體積變化的差值。玻璃液體溫度計(jì)的結(jié)構(gòu)基本上是由裝有感溫液（或稱測(cè)溫介質(zhì)）的感溫泡、玻璃毛細(xì)管和刻度標(biāo)尺三部分組成。感溫泡位于溫度計(jì)的下端，是玻璃液體溫度計(jì)感溫的部分，可容納絕大部分的感溫液，所以也稱為貯液泡。感溫泡或直接由玻璃毛細(xì)管加工制成（稱拉泡）或由焊接一段薄壁玻璃管制成（稱接泡）。感溫液是封裝在溫度計(jì)感溫泡內(nèi)的測(cè)溫介質(zhì)．具有體膨脹系數(shù)大，粘度?。诟邷叵抡魵鈮旱停瘜W(xué)性能穩(wěn)定，不變質(zhì)以及在較寬的溫度范圍內(nèi)能保持液態(tài)等待點(diǎn)。常用的有**．以及甲苯、乙醇和煤油等有機(jī)液體。玻璃毛細(xì)管是連接在感溫泡上的中心細(xì)玻璃管，感溫液體隨溫度的變化在里面移動(dòng)。標(biāo)尺是將分度線直接刻在毛細(xì)管表面，同時(shí)標(biāo)尺上標(biāo)有數(shù)字和溫度單位符號(hào)，用來(lái)表明所測(cè)溫度的高低。巴中溫度儀表批發(fā)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="巴中溫度儀表批發(fā),溫度儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265025732422/1754567.jpg"></div><p style="text-indent:25px">氣體溫度計(jì)：利用一定質(zhì)量的氣體作為工作物質(zhì)的溫度計(jì)。用氣體溫度計(jì)來(lái)體現(xiàn)理想氣體溫標(biāo)為標(biāo)準(zhǔn)溫標(biāo)。用氣體溫度計(jì)所測(cè)得的溫度和熱力學(xué)溫度相吻合。氣體溫度計(jì)是在容器里裝有氫或氮?dú)猓ǘ嘤脷錃饣蚝庾鳒y(cè)溫物質(zhì)，因?yàn)闅錃夂秃獾囊夯瘻囟群艿停咏?**零度，故它的測(cè)溫范圍很廣），它們的性質(zhì)可外推到理想氣體。這種溫度計(jì)有兩種類型：定容氣體溫度計(jì)和定壓氣體溫度計(jì)。定容氣體溫度計(jì)是氣體的體積保持不變，壓強(qiáng)隨溫度改變。定壓氣體溫度計(jì)是氣體的壓強(qiáng)保持不變，體積隨溫度改變。</p><p style="text-indent:25px">雙金屬溫度計(jì)：雙金屬溫度計(jì)是一種測(cè)量中低溫度的現(xiàn)場(chǎng)檢測(cè)儀表。可以直接測(cè)量各種生產(chǎn)過(guò)程中的-80℃~+500℃范圍內(nèi)液體蒸汽和氣體介質(zhì)溫度。雙金屬溫度計(jì)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(cè)溫靈敏度，通常將金屬片制成螺旋卷形狀，當(dāng)多層金屬片的溫度改變時(shí)，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(zhuǎn)動(dòng)的指針相連，因此，當(dāng)雙金屬片感受到溫度變化時(shí)，指針即可在一圓形分度標(biāo)尺上指示出溫度來(lái)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="巴中溫度儀表批發(fā),溫度儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265025703125/9254906.jpg"></div><p style="text-indent:25px">輻射高溫計(jì)，根據(jù)物體的輻射能與溫度之間的關(guān)系來(lái)測(cè)量溫度的儀表。所有的物體當(dāng)其溫度高于***零度時(shí)都發(fā)射出輻射能量，其輻射能量的波長(zhǎng)范圍約為0.01～100微米,對(duì)應(yīng)比較大能量的峰值波長(zhǎng)隨物體溫度的增長(zhǎng)而減小。探測(cè)元件從被測(cè)對(duì)象接收到的能量W可用斯特藩-波耳茲曼方程確定。通過(guò)測(cè)量能量W 就可確定物體的溫度0T。由于實(shí)際物體的真實(shí)溫度大于輻射溫度，而許多工業(yè)生產(chǎn)過(guò)程溫度測(cè)量中的發(fā)射率相對(duì)保持恒定，可采用修正方法改善被測(cè)對(duì)象的黑體輻射條件或測(cè)定發(fā)射率ε來(lái)求出真實(shí)溫度。輻射高溫計(jì)分為全輻射高溫計(jì)和部分輻射高溫計(jì)成都溫度儀表廠家</p><p style="text-indent:25px">巴中溫度儀表批發(fā)</p><p style="text-indent:25px">利用溫差電偶來(lái)測(cè)量溫度的溫度計(jì)。將兩種不同金屬導(dǎo)體的兩端分別連接起來(lái)，構(gòu)成一個(gè)閉合回路，一端加熱，另一端冷卻，則兩個(gè)接觸點(diǎn)之間由于溫度不同，將產(chǎn)生電動(dòng)勢(shì)，導(dǎo)體中會(huì)有電流發(fā)生。因?yàn)檫@種溫差電動(dòng)勢(shì)是兩個(gè)接觸點(diǎn)溫度差的函數(shù)，所以利用這一特性制成溫度計(jì)。若在溫差電偶的回路里再接入一種或幾種不同金屬的導(dǎo)線，所接入的導(dǎo)線與接觸點(diǎn)的溫度都是均勻的，對(duì)原電動(dòng)勢(shì)并無(wú)影響，通過(guò)測(cè)量溫差電動(dòng)勢(shì)來(lái)求被測(cè)的溫度，這樣就構(gòu)成了溫差電偶溫度計(jì)。這種溫度計(jì)測(cè)溫范圍很大。例如，銅和康銅構(gòu)成的溫差電偶的測(cè)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(gòu)成的溫差電偶測(cè)溫可達(dá)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(dá)2600℃。巴中溫度儀表批發(fā)</p><p style="text-indent:25px">成都皖川科技有限公司坐落四川省成都市青羊區(qū)青羊萬(wàn)達(dá)廣場(chǎng)SOHO公寓2-2-1138室，交通便利，環(huán)境優(yōu)美，是一家貿(mào)易型企業(yè)。成都皖川科技是一家有限責(zé)任公司（自然）企業(yè)，一直貫徹“以人為本，服務(wù)于社會(huì)”的經(jīng)營(yíng)理念;“質(zhì)量高速，誠(chéng)守信譽(yù)，持續(xù)發(fā)展”的質(zhì)量方針。以滿足顧客要求為己任；以顧客永遠(yuǎn)滿意為標(biāo)準(zhǔn)；以保持行業(yè)**為目標(biāo)，提供***的[ "耐磨熱電偶", "氣體檢測(cè)儀器", "便攜式氣體報(bào)警控制器", "雙金屬溫度計(jì)" ]。成都皖川科技將以真誠(chéng)的服務(wù)、創(chuàng)新的理念、***的產(chǎn)品，為彼此贏得全新的未來(lái)！</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/285496.html</p></div></div></div></div></div><div id="tmtp7vh" class="page-right twoColRt"><div id="mw8vx37" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8fmovce" 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="nhjqc7w" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/846569.html"><div><img src="https://tyunfile.71360.com/WaterMark/UploadFile/nbzxsw/637298235378037109/764794.png" alt="寧波寧海直接考A2有幾個(gè)科目真誠(chéng)推薦寧波助學(xué)商務(wù)信息咨詢供應(yīng)" class="vcenter" 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