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<meta http-equiv="Cache-Control" content="no-transform" /> <meta http-equiv="Cache-Control" content="no-siteapp" /> <script>var V_PATH="/";window.onerror=function(){ return true; };</script> </head><body> <h1><a href="http://www.cdcfah.com/">六月丁香婷婷亚洲中文字幕,欧美精品高清一区二区蜜芽,尤物92午夜福利视频,精品视频一区二区三区在线观看</a></h1> <div style="position:fixed;left:-9000px;top:-9000px;"><object id="qgqbi"></object><delect id="qgqbi"><sub id="qgqbi"><dl id="qgqbi"></dl></sub></delect><track id="qgqbi"></track><tr id="qgqbi"></tr><video id="qgqbi"></video><xmp id="qgqbi"><span id="qgqbi"></span></xmp><span id="qgqbi"></span><strong id="qgqbi"><em id="qgqbi"><sup id="qgqbi"><progress id="qgqbi"></progress></sup></em></strong><dl id="qgqbi"><small id="qgqbi"></small></dl><wbr id="qgqbi"></wbr><noscript id="qgqbi"></noscript><tr id="qgqbi"></tr><track id="qgqbi"><dl id="qgqbi"></dl></track><label id="qgqbi"><em id="qgqbi"></em></label><tbody id="qgqbi"></tbody><blockquote id="qgqbi"></blockquote><dfn id="qgqbi"><center 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南儀測控技術(shù)供應(yīng)</h1><div id="3uroqho" class="proBig"><div id="znpwikw" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637401927286178117/1508020.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="ihzgnuw" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/nanyishiye/637401927286178117/1508020.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="luqh8x2" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>嘉興音叉式液位開關(guān)訂購,液位開關(guān)</p><p><span>***更新：</span>2020-12-23 00:22:08</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="bjq2bxe" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">南儀測控技術(shù)(上海)有限公司</a></p><p><span>聯(lián)系人：</span>桂經(jīng)理</p><p><span>郵箱: </span>704766500@qq.com</p><p><span>電話: </span>17802114401</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>https://www.nanicontrol.com</p><p><span>手機: </span>021-61559357</p><p><span>地址: </span>滬閔路1871號9甲幢4樓407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="xgifryv" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="n8v7z3r" class="box"><p><p style="text-indent:25px">音叉式液位開關(guān)是一種新型的液位開關(guān)。它是利用音叉振動的原理設(shè)計制作的。它是在音叉液位開關(guān)的感應(yīng)棒底座，透過壓電晶片驅(qū)動音叉棒，并且由另外一壓電晶片接受振動訊號，使振動訊號得以循環(huán)，并且使感應(yīng)棒產(chǎn)生共振，嘉興音叉式液位開關(guān)訂購。當(dāng)物料與感應(yīng)棒接觸時，振動訊號逐漸變小，直到停止共振時，控制電路會輸出電氣接點信號。由于感應(yīng)棒感度由前端向后座依次減弱的自然原理，所以當(dāng)桶槽內(nèi)物料與桶周圍向上堆積，觸及感應(yīng)棒底座〈后部〉或排料時，均不會產(chǎn)生錯誤訊號。簡單的說，音叉在壓電晶體激勵下產(chǎn)生機械振動，這種振動具有一定的頻率和振幅。當(dāng)音叉被液體或固體浸沒時，嘉興音叉式液位開關(guān)訂購，嘉興音叉式液位開關(guān)訂購，音叉的振動頻率和振幅將發(fā)生變化。這個頻率變化由電子線路檢測出來并輸出一個開關(guān)量。光電式液位開關(guān)?優(yōu)點：液位控制精度高，可重復(fù)性好。嘉興音叉式液位開關(guān)訂購</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興音叉式液位開關(guān)訂購,液位開關(guān)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637401927286178117/1508020.png"></div><p style="text-indent:25px">音叉液位開關(guān)的安裝方法一般來說，音叉液位開關(guān)安裝方便，可以按照用戶所需安裝在被測容器的任何位置上，既可水平安裝，也可垂直安裝或傾斜安裝。但為了確保儀表的工作正常，如被測液體較為粘稠時，為避免掛料現(xiàn)象的出現(xiàn)，應(yīng)將儀表垂直或者傾斜安裝。叉體面與液體水平面相垂直液體流動方向與叉體面相平行避免安裝于液體出入口。但無論采取何種方式安裝，一定要避免將音叉液位開關(guān)安裝在液體的進(jìn)出口處，同時確保液位開關(guān)的音叉面與介質(zhì)的運動方向保持平行，以避免音叉受損或誤報警上海光電液位開關(guān)價格在傳統(tǒng)玻璃管液位計中加上一個浮子，浮子可以在玻璃管中隨水位上下浮動。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興音叉式液位開關(guān)訂購,液位開關(guān)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637401927472760188/560566.png"></div><p style="text-indent:25px">外貼式液位開關(guān)一種新型液位監(jiān)測報警裝置。主要用于監(jiān)測儲罐液面，實現(xiàn)上下限報警或監(jiān)測管道中是否有介質(zhì)存在（干態(tài)保護），可適用于醫(yī)藥、石油、化工、電力、食品等行業(yè)的液位過程控制。目前外貼式有超聲波和聲吶波之分。外貼式超聲波液位開關(guān)其傳感器（探頭）產(chǎn)生的高頻超聲波脈沖可穿過容器壁，這個脈沖會在容器壁和液體中傳播，還會被反射回來。通過對這種反射特性的檢測和計算，就可以判斷出監(jiān)測點處容器內(nèi)是否有液。同時液位控制器可輸出繼電器信號給后級電器或其它設(shè)備，從而實現(xiàn)對液位的監(jiān)測或控制。</p><p style="text-indent:25px">電極式液位開關(guān)技術(shù)參數(shù) 電極棒部分： 1、接液材質(zhì)（可選）：SUS304/316L+PP（PE）???????工作溫度：-20～80℃??????????????????????SUS304/316L+PTFE???????????工作溫度：-20～200℃??????????????????????TI+PTFE????????????????????工作溫度：-20～200℃?2、過程連接：螺紋或法蘭，（大小跟所需控制液位點數(shù)有關(guān)）控制器：? 1、?電源電壓：220VAC、24VAC（可選）?2、?觸點容量：240VAC/24VDC????5A，?SPDT?3、?一個控制器對應(yīng)一個液位點輸出（檢測幾個液位點對應(yīng)配幾個控制器，且每個控制器的公共極均需同電極棒的公共極相連）。超聲波液位計測量有腐蝕（酸、堿）的介質(zhì)、有污染的場合，易產(chǎn)生粘附物的物質(zhì)。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="嘉興音叉式液位開關(guān)訂購,液位開關(guān)" src="https://tyunfile.71360.com/UploadFile/nanyishiye/637401927389528188/868623.png"></div><p style="text-indent:25px">浮球液位開關(guān)在我們安裝前只需要重新標(biāo)定水位線。無法對開關(guān)本身進(jìn)行調(diào)整的。這時用萬用表測開關(guān)狀態(tài)，在水線附近會隨水位高低通斷，這說明沒問題。只要保證安裝過程中與熱力設(shè)備的水位線一致就好了。比如SOR的液位開關(guān)吧，一般在筒壁上都貼著水位線，我們把開關(guān)泡在在水槽中，慢慢下沉，使水面逐漸靠近標(biāo)識線，zui靠近時會聽到微動開關(guān)動作的聲音。需要注意的是:高加液位開關(guān)等的工作溫度高，里邊的水溫也高;高溫水的密度要小于室溫水密度因而室溫水的動作線比開關(guān)標(biāo)識線要低些的。液位低報警接在常閉上(NC)，液位高接常開(NO)。這類開關(guān)還是不難安裝的。液位開關(guān)本身都會帶兩對以上的微動開關(guān)，分別輸出兩對常開兩對常閉接點，在應(yīng)用時通常是"接通報警"。從形式上主要分為接觸式和非接觸式。嘉興音叉式液位開關(guān)訂購</p><p style="text-indent:25px">電極式液位開關(guān)，電子式液位開關(guān)，電容式液位開關(guān)也可以采用接觸式方法實現(xiàn)。嘉興音叉式液位開關(guān)訂購</p><p style="text-indent:25px">電容式液位計的優(yōu)點電容式液位計的測量主要就是依賴兩個電極之間的電容量變化，也就是說電容液位計的靈敏度是取決于兩個介質(zhì)，氣體、和液體的介電常數(shù)的差值。電容液位計的測量必須保證兩個介質(zhì)的介電常數(shù)保持一致，否則介電常數(shù)的變化會直接導(dǎo)致誤差的產(chǎn)生。電容式液位計的金屬棒電極都覆蓋有絕緣層，這樣可以避免因被測量介質(zhì)具有導(dǎo)電性而產(chǎn)生的測量誤差和安全隱患。電容液位計的體積較小，適用于一些高壓介質(zhì)的液位測量。電容液位計還具有遠(yuǎn)傳和調(diào)節(jié)的配套功能。嘉興音叉式液位開關(guān)訂購</p><p style="text-indent:25px">南儀測控技術(shù)(上海)有限公司主要經(jīng)營范圍是五金、工具，擁有一支專業(yè)技術(shù)團隊和良好的市場口碑。公司自成立以來，以質(zhì)量為發(fā)展，讓匠心彌散在每個細(xì)節(jié)，公司旗下壓力變送器，溫度傳感器，液位計，流量計深受客戶的喜愛。公司將不斷增強企業(yè)重點競爭力，努力學(xué)習(xí)行業(yè)知識，遵守行業(yè)規(guī)范，植根于五金、工具行業(yè)的發(fā)展。南儀測控技術(shù)秉承“客戶為尊、服務(wù)為榮、創(chuàng)意為先、技術(shù)為實”的經(jīng)營理念，全力打造公司的重點競爭力。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2516309.html</p></div></div></div></div></div><div id="fogszgs" class="page-right twoColRt"><div id="2dfhegi" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="b3ey77t" 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)" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></div><p>福建ZF配件哪家強信息推薦自業(yè)物資供應(yīng)</p></a></div><div id="ymtqszb" class="recomPic likePro"><a 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