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當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_dgdq/">電工電氣</a>?<a href="http://www.cdcfah.com/cp/second-dgdq_gydqew/">高壓電器</a>?<a href="http://www.cdcfah.com/cp/third-gydqew_gykggek/">高壓開關(guān)柜</a>?眉山溫度儀表歡迎來電成都皖川科技供應(yīng)</p><div id="8t83cj4" class="leftbox clearfix"><h1>眉山溫度儀表歡迎來電成都皖川科技供應(yīng)</h1><div id="gkr883g" class="proBig"><div id="eoq87l7" class="bigimg"><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 id="pdaxzga" 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="k2fc78h" 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>眉山溫度儀表</p><p><span>***更新：</span>2020-06-24 02:22:58</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="2bawd7z" 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(dá)廣場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="2ykhelu" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="zolnpbd" class="box"><p><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(dǎo)體的兩端分別連接起來，構(gòu)成一個閉合回路，一端加熱，另一端冷卻，眉山溫度儀表，則兩個接觸點之間由于溫度不同，將產(chǎn)生電動勢，導(dǎo)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(dǎo)線，所接入的導(dǎo)線與接觸點的溫度都是均勻的，眉山溫度儀表，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(gòu)成了溫差電偶溫度計，眉山溫度儀表。這種溫度計測溫范圍很大。例如，銅和康銅構(gòu)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(gòu)成的溫差電偶測溫可達(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℃。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="眉山溫度儀表" 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(guān)系來測量溫度，由光學(xué)系統(tǒng)、探測器、測量儀表和用于冷卻及煙塵防護(hù)的輔助裝置組成。被測物體向傳感器方向發(fā)射的輻射經(jīng)過透鏡聚焦到探測元件上，所產(chǎn)生的相應(yīng)信號可由測量儀表顯示或記錄。探測器通常采用響應(yīng)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(zhǔn)端溫度應(yīng)保持恒定或采取自動溫度補償措施。光學(xué)系統(tǒng)和探測元件對光譜輻射的響應(yīng)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(jié)構(gòu)簡單、使用方便、性能穩(wěn)定、可以自動記錄和遠(yuǎn)距離傳送信號等。測溫范圍為100～2000℃,測溫誤差***值為8～12℃。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="眉山溫度儀表" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265025703125/9254906.jpg"></div><p style="text-indent:25px">液體溫度計：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測量溫度。溫度計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。玻璃液體溫度計的結(jié)構(gòu)基本上是由裝有感溫液（或稱測溫介質(zhì)）的感溫泡、玻璃毛細(xì)管和刻度標(biāo)尺三部分組成。感溫泡位于溫度計的下端，是玻璃液體溫度計感溫的部分，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感溫泡內(nèi)的測溫介質(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。常用的有**．以及甲苯、乙醇和煤油等有機液體。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。標(biāo)尺是將分度線直接刻在毛細(xì)管表面，同時標(biāo)尺上標(biāo)有數(shù)字和溫度單位符號，用來表明所測溫度的高低。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/369023.html</p></div></div></div></div></div><div id="vf89su7" class="page-right twoColRt"><div id="feykmt8" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="jnk7g87" 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" 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