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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="hvkwl9t" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407042844337423/2049368.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="kuwyazl" 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>超聲波物位計訂購,物位計</p><p><span>***更新：</span>2020-12-13 01:19:58</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="k3a2m22" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海翼爾電子科技有限公司</a></p><p><span>聯(lián)系人：</span>趙“S</p><p><span>郵箱: </span>yeertec@163.com</p><p><span>電話: </span>13361991561</p><p><span>傳真: </span>021_57155131</p><p><span>網(wǎng)址: </span>http://www.yeer-tec.com</p><p><span>手機: </span>021-57488360</p><p><span>地址: </span>海灣旅游區(qū)莘奉公路4960號110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="ae2zoip" class="page-proshow02"><p class="title">詳細說明</p><div id="sm3cyk8" class="box"><p><p style="text-indent:25px">電感式物位儀表：利用物位變化時引起自感量、互感量或感應(yīng)電流等的變化來測定物位，常用的有感應(yīng)式高頻液位計或諧振式液位計。也可用帶導(dǎo)磁材料的浮子與電磁感應(yīng)線圈制成液位信號報警器。采用電感式測量可實現(xiàn)完全不接觸測量。利用超聲物位儀表進行測量的優(yōu)點是檢測元件可以不與被測液體接觸，因而適合于強腐蝕性、高壓、有毒、高粘度液體液位的測量。此外它還不怕煙和光，不受電磁干擾，可測量各種液體的液位和粉粒狀固體料位，還可用于測量兩種液體界面、液位差、料位差等。固介式的測量方式能測沸騰介質(zhì)的液位，允許液面波動傾側(cè)、如測量火箭、飛機，超聲波物位計訂購、輪船燃料倉內(nèi)的液位，超聲波物位計訂購。液介式的測量方式應(yīng)用十分普遍，海水深度測量就采用這種方法。超聲波物位計與脈沖式雷達物位計類似，超聲波物位計訂購，超聲波物位計也是利用回波的反射原理，來測量物位的高度。超聲波物位計訂購</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="超聲波物位計訂購,物位計" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407042844337423/2049368.png"></div><p style="text-indent:25px">電阻式物位儀表利用物位變化時引起電極電阻變化的原理工作。物位變化引起電阻逐漸變化的，可用于連續(xù)測量物位；只有當物位變化到接觸電極時才引起電阻突變的，可用來定點報警控制物位。電阻式物位儀表在工作時電極接觸被測介質(zhì)（一般為導(dǎo)電液體），電極表面接觸狀況改變（如出現(xiàn)污垢、生銹、腐蝕等現(xiàn)象）會引起表面接觸電阻變化，從而產(chǎn)生測量誤差。使用時間越長，誤差就越大。因此，這種儀表雖然結(jié)構(gòu)簡單，但應(yīng)用范圍不廣，主要用作液位定點報警和控制，很少用于連續(xù)測量。超聲波物位計訂購電容式物位計：防塵、防掛料、防蒸汽、防冷凝。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="超聲波物位計訂購,物位計" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407042891817879/6770709.png"></div><p style="text-indent:25px">物位計是一種新型的電容式連續(xù)測量物位儀表，由于采用射頻技術(shù)和微機技術(shù)解決了傳統(tǒng)電容式物位計溫漂大、標定難、怕粘附的難題。可應(yīng)用于各行業(yè)中液體及固體料倉物位的連續(xù)測量。特別是高溫、強腐蝕、強粘附、粉塵大的環(huán)境下進行測量，選擇該物位計是較適合的。電容式物位計高溫、高壓條件下的物位測量。防塵、防掛料、防蒸汽、防冷凝。物位開關(guān)用于檢測顆粒狀固體、漿料和界面的預(yù)定液位。超聲方法或高靈敏度電容式測量。微波物位計使用的微波頻率有三個頻段：C波段(5.8～6.3GHz)、X波段(9～10.5GHz)、K波段(24～26GHz)。制造商根據(jù)自己的技術(shù)及國家批準的頻率來設(shè)計產(chǎn)品。</p><p style="text-indent:25px">差壓式物位儀表：差壓式儀表利用液體的靜態(tài)壓力測量液位。液體底部壓力與容器內(nèi)的液面高度和液體表面上的氣壓有關(guān)。如果測量敞口容器內(nèi)液位，則可用壓力測量儀表或壓力變送器間接測出液面高度；如果在有壓力的密封容器內(nèi)測量液位,則采用測量壓差的方法,消除液面上壓力的影響，將容器底部與差壓變送器正壓室相連，液面上的空間與負壓室相連，就可以測量出液面的高低。電測式物位儀表將物位變化轉(zhuǎn)換為電參數(shù)（如電阻、電容、電感）的變化，再變成電信號輸出。這類儀表又分為電阻式、電容式和電感式三種。電容式物位計：高溫、高壓條件下的物位測量。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="超聲波物位計訂購,物位計" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407042874054183/5008712.png"></div><p style="text-indent:25px">現(xiàn)今的高頻雷達一般為工作在K波段(24～26GHz)的雷達物位計，雷達的工作頻率越高其電磁波波長越短，越容易在傾斜的固體表面有更好的反射，并具有較窄的波束寬度，可有效避開障礙物，高的頻率還可使雷達使用更小的天線。而FMCW調(diào)頻連續(xù)波微波物位計發(fā)射和接受信號是同時的，相同時間內(nèi)發(fā)射的微波信號更多，固體測量中可減少高粉塵固體料倉測量中的失波現(xiàn)象。因此固體測量中高頻的調(diào)頻雷達能提供準確、可靠的測量，并在例如化工行業(yè)中的PP粉末、PE粉末等介質(zhì)中也有良好應(yīng)用。但由于技術(shù)限制，現(xiàn)今還沒有工作在K波段以上的高頻雷達物位計。雷達物位計采用微波脈沖的測量方法，并可在工業(yè)頻率波段范圍內(nèi)正常。脈沖雷達料位儀廠商</p><p style="text-indent:25px">差壓式儀表利用液體的靜態(tài)壓力測量液位。超聲波物位計訂購</p><p style="text-indent:25px">超聲波物位計與脈沖式雷達物位計類似，超聲波物位計也是利用回波的反射原理，來測量物位的高度，二者的區(qū)別為雷達物位計采用的是電磁波，無需傳播介質(zhì)，但是超聲波物位計采用的是機械波，其必須借助一定介質(zhì)才能進行傳播，所以當介質(zhì)的壓力、溫度、密度、濕度等條件恒定時，超聲波在介質(zhì)中的傳播速度是一個常數(shù)。超聲波物位計因其聲波的傳播速度與傳播介質(zhì)的溫度、壓力以及被測介質(zhì)的特性等關(guān)系密切，一般用于較為穩(wěn)定的工況下的物位測量；而雷達物位計選型要綜合考慮介質(zhì)的介電常數(shù)、料倉高度、物料形態(tài)及穩(wěn)定性等因素，從而確定其微波頻率、波束角以及天線型式。超聲波物位計訂購</p><p style="text-indent:25px">上海翼爾電子科技有限公司主要經(jīng)營范圍是儀器儀表，擁有一支專業(yè)技術(shù)團隊和良好的市場口碑。上海翼爾電子致力于為客戶提供良好的流量，壓力，溫度，物液位，一切以用戶需求為中心，深受廣大客戶的歡迎。公司從事儀器儀表多年，有著創(chuàng)新的設(shè)計、強大的技術(shù)，還有一批**的專業(yè)化的隊伍，確保為客戶提供良好的產(chǎn)品及服務(wù)。在社會各界的鼎力支持下，持續(xù)創(chuàng)新，不斷鑄造***服務(wù)體驗，為客戶成功提供堅實有力的支持。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/2378396.html</p></div></div></div></div></div><div id="c7xmy7i" class="page-right twoColRt"><div id="scbsulf" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="fpmtvc7" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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