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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="z38khy3" 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>成都溫度儀表廠家</p><p><span>***更新：</span>2020-06-28 02:24:21</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="mdet4bd" 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="hqn9m8y" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="uolvzvc" class="box"><p><p style="text-indent:25px">利用被測(cè)物體的部分波段輻射能與溫度之間的關(guān)系來(lái)測(cè)量物體溫度，又稱(chēng)窄帶輻射溫度計(jì)。部分輻射高溫計(jì)由某一較窄響應(yīng)波段的光學(xué)系統(tǒng)和探測(cè)元件組成。被測(cè)物體的部分熱輻射經(jīng)調(diào)制盤(pán)和濾**后照到探測(cè)元件上,再經(jīng)放大由儀表顯示或記錄。探測(cè)元件通常采用光導(dǎo)型或光生伏打型，它們決定傳感器的響應(yīng)波段。例如，采用硫化鉛時(shí)響應(yīng)波長(zhǎng)范圍約為0.6～3.0微米，時(shí)間常數(shù)為毫秒量級(jí)。如采用硅光電池，則響應(yīng)波段約為0.4～1.1微米，成都溫度儀表廠家，時(shí)間常數(shù)可至微秒量級(jí)。采用紅外輻射探測(cè)技術(shù)還可使輻射測(cè)溫范圍向低溫?cái)U(kuò)展。部分輻射高溫計(jì)有多種形式，如遠(yuǎn)程紅外測(cè)溫儀、紅外線光源探測(cè)儀、紅外線亮度測(cè)溫儀、光電溫度計(jì)等。這類(lèi)傳感器的優(yōu)點(diǎn)是響應(yīng)速度快，測(cè)量精度高，穩(wěn)定性好，測(cè)量下限低，可測(cè)量微小目標(biāo)，而且比較窄的敏感譜帶可以減少或消除在瞄準(zhǔn)光路中由于氣體的吸收和發(fā)射率所造成的不良影響。部分輻射高溫計(jì)常用于測(cè)量靜止或運(yùn)動(dòng)的灼熱體表面溫度，如測(cè)量生產(chǎn)中的鋼板，成都溫度儀表廠家、鍍錫鐵皮，成都溫度儀表廠家、快速加工件、電機(jī)或電纜接頭溫度等。一般測(cè)溫范圍為 100～1500℃，采用紅外探測(cè)元件時(shí)可擴(kuò)展至常溫范圍。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="成都溫度儀表廠家" src="http://tyunfile.71360.com/UploadFile/cdwckj/637044265029736328/6657115.jpg"></div><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)，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(lèi)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、鍺等。電阻溫度計(jì)使用方便可靠，已大范圍應(yīng)用。它的測(cè)量范圍為-260℃至600℃左右。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="成都溫度儀表廠家" 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(zhǎng)輻射能與溫度之間的關(guān)系來(lái)測(cè)量溫度，由光學(xué)系統(tǒng)、探測(cè)器、測(cè)量?jī)x表和用于冷卻及煙塵防護(hù)的輔助裝置組成。被測(cè)物體向傳感器方向發(fā)射的輻射經(jīng)過(guò)透鏡聚焦到探測(cè)元件上，所產(chǎn)生的相應(yīng)信號(hào)可由測(cè)量?jī)x表顯示或記錄。探測(cè)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(shí)間常數(shù)一般為秒級(jí)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(dòng)溫度補(bǔ)償措施。光學(xué)系統(tǒng)和探測(cè)元件對(duì)光譜輻射的響應(yīng)有選擇性，不可能完全接收全波長(zhǎng)的輻射，因此這種輻射溫度計(jì)也可稱(chēng)為寬帶輻射溫度計(jì)。全輻射高溫計(jì)的優(yōu)點(diǎn)是結(jié)構(gòu)簡(jiǎn)單、使用方便、性能穩(wěn)定、可以自動(dòng)記錄和遠(yuǎn)距離傳送信號(hào)等。測(cè)溫范圍為100～2000℃,測(cè)溫誤差***值為8～12℃。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/417832.html</p></div></div></div></div></div><div id="z743l2x" class="page-right twoColRt"><div id="crt47np" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8a3axeg" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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