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src="http://tyunfile.71360.com/UploadFile/cdwckj/637107341481083984/9952593.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7j5rta8" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637107341481083984/9952593.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3kj8hzg" 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>遂寧雷達液位計廠家,雷達液位計</p><p><span>***更新：</span>2020-07-02 02:19:04</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="8ztk7lx" 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)青羊萬達廣場SOHO公寓2-2-1138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="wld3zgd" class="page-proshow02"><p class="title">詳細說明</p><div id="8bdf3gy" class="box"><p><p> 測量原理 </p> <p> 雷達液位計是依據(jù)時域反射原理(TDR)為基礎(chǔ)的雷達液位計，雷達液位計的電磁脈沖以光速沿鋼纜或探棒傳播，當遇到被測介質(zhì)表面時，雷達液位計的部分脈沖被反射形成回波并沿相同路徑返回到脈沖發(fā)射裝置，發(fā)射裝置與被測介質(zhì)表面的距離同脈沖在其間的傳播時間成正比，經(jīng)計算得出液位高度 </p> <p> <br /> </p> <p> 注意事項 </p> <p> 1.測量范圍從波束觸及罐低的那一點開始計算，但在特殊情況下，若罐底為凹型或錐形，當物位低于此點時無法進行測量，遂寧雷達液位計廠家。 </p> <p> 2.若介質(zhì)為低介電常數(shù)當其處于低液位時，罐底可見，此時為保證測量精度，建議將零點定在低高度為C 的位置。 </p> <p> 3.理論上測量達到天線前列的位置是可能的，遂寧雷達液位計廠家，但是考慮到腐蝕及粘附的影響，測量范圍的終值應(yīng)距離天線的前列至少100mm。 </p> <p> 4.對于過溢保護，遂寧雷達液位計廠家，可定義一段安全距離附加在盲區(qū)上。 </p> <p> 5.**小測量范圍與天線有關(guān) </p> <p> <br /> </p> <p> <br /> </p> <p> <br /> 遂寧雷達液位計廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遂寧雷達液位計廠家,雷達液位計" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107341481083984/9952593.jpg"></div><p> 可測量的介質(zhì) </p> <p> 測量介質(zhì)流速、儀表量程與口徑測量一般的介質(zhì)時，雷達液位計的滿度 </p> <p> 流量可以在測量介質(zhì)流速0.5—12m/s范圍內(nèi) 選用，范圍比較寬。選擇儀表規(guī)格(口徑)不一定與工藝管道相同，應(yīng)視測量流量范圍是否 </p> <p> 在流速范圍內(nèi)確定，即當管道流速偏低，不能滿足流量儀表要求時或者在此流速下測量準確度不能保證時，需要縮小儀表口徑，從而提 </p> <p> 高管內(nèi)流速，得到滿意測量結(jié)果。 </p> <p> 輸出 </p> <p> <p> 通過輸入空罐高度E（=零點），滿罐高度F（=滿量程）及一些應(yīng)用參數(shù)來設(shè)定，應(yīng)用參數(shù)將自動使儀表適應(yīng)測量環(huán)境。對應(yīng)于4－20mA輸出。 </p> 遂寧雷達液位計廠家</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遂寧雷達液位計廠家,雷達液位計" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107341553369140/8317272.jpg"></div><p> 應(yīng)用介質(zhì) </p> <p> 智能雷達物位計適用于對液體、漿料及顆粒料的物位進行非接觸式連續(xù)測量，適用于溫度、壓力變化大；有惰性氣體及揮發(fā)存在的場合。 </p> <p> 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)正常工作。波束能量較低，可安裝于各種金屬、非金屬容器或管道內(nèi)，對人體及環(huán)境均無傷害。 </p> <p> <br /> </p> <p> 測量方法 </p> <p> 是依據(jù)時域反射原理(TDR)為基礎(chǔ)的雷達液位計，雷達液位計的部分脈沖被反射形成回波并沿相同路徑返但是考慮到腐蝕及粘附的影響，測量范圍的終值應(yīng)距離天線的前列至少100mm。對于過溢保護，可定義一段雷達液位計安全距離附加在盲區(qū)上。**小測量范圍與天線有關(guān)。隨濃度不同，泡沫既可以吸收微波，又可以將其反射，但在一定的條件下是可以進行測量的?；氐矫}沖發(fā)射裝置。 </p> <p> <br /> </p><p> 即使工況比較復(fù)雜的情況下，存在虛假回波，用***的微處理技術(shù)和調(diào)試軟件也可以準確的分析出物位的回波。 </p> <p> <br /> </p> <p> 輸入 </p> <p> 天線接收反射的微波脈沖并將其傳輸給電子線路，微處理器對此信號進行處理，識別出微脈沖在物料表面所產(chǎn)生的回波。正確的回波信號識別由智能軟件完成，精度可達到毫米級。距離物料表面的距離D與脈沖的時間行程T成正比： </p> <p> D=C×T/2 </p> <p> 其中C為光速 </p> <p> 因空罐的距離E已知，則物位L為： </p> <p> L=E-D </p> <p> 輸出 </p> <p> 通過輸入空罐高度E（=零點），滿罐高度F（=滿量程）及一些應(yīng)用參數(shù)來設(shè)定，應(yīng)用參數(shù)將自動使儀表適應(yīng)測量環(huán)境。對應(yīng)于4－20mA輸出。 </p> <p> <br /> </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="遂寧雷達液位計廠家,雷達液位計" src="http://tyunfile.71360.com/UploadFile/cdwckj/637107341366347656/3610976.jpg"></div><p> 選型要點 </p> <p> 雷達液位計正確選型才能保證雷達液位計更好的使用。選用什么種類的雷達液位計應(yīng)根據(jù)被測流體介質(zhì)的物理性質(zhì)和化學(xué)性質(zhì)來決定?使雷達液位計的通徑、流量范圍、襯里材料、電極材料和輸出電流等?都能適應(yīng)被測流體的性質(zhì)和流量測量的要求。 </p> <p> 1、精密功能檢查 </p> <p> 精度等級和功能根據(jù)測量要求和使用場合選擇儀表精 </p> <p> 度等級，做到經(jīng)濟合算。比如用于貿(mào)易結(jié)算、產(chǎn)品交接和能源計量的場合，應(yīng)該選擇精度等級高些，如1.0級、0.5級，或者更高等級; </p> <p> 用于過程控制的場合，根據(jù)控制要求選擇不 </p> <p> 同精度等級;有些**是檢測一下過程流量，無需做精確控制和計量的場合，可以選擇精度等級稍低的，如1.5級、2.5級，甚至 </p> <p> 4.0級，這時可以選用價格低廉的插入式雷達液位計。遂寧雷達液位計廠家</p><p style="text-indent:25px">遂寧雷達液位計廠家</p><p> 優(yōu)勢及應(yīng)用 </p> <p> 1.雷達液位計可以測量液體、固體介質(zhì)比如：原油、漿料、原煤、粉煤、揮發(fā)性液體等； </p> <p> 2.可以在真空中測量可以測量所有介質(zhì)常數(shù)>1.2的介質(zhì)，測量范圍可達70m； </p> <p> 3.供電和輸出信號通過一根兩芯線纜（回路電路）,采用4…20mA輸出或數(shù)字型信號輸出； </p> <p> 4.非接觸式測量安裝方便采用極其穩(wěn)定的材料牢固耐用，精確可靠分辨率可達1mm； </p> <p> 5.不受噪音、蒸汽、粉塵、真空等工況影響； </p> <p> 6.不受介質(zhì)密度和溫度的變化，過程壓力可達400bar,介質(zhì)溫度可達-200℃至800℃； </p> <p> 7.安裝方式有多種可以選擇：頂部安裝、側(cè)面安裝、旁通管安裝、導(dǎo)波管安裝； </p> <p> 8.調(diào)試可多種方式選擇：采用編程模塊調(diào)試（相當于一個分析處理儀表）、SOFT軟件調(diào)試、HART手持編程器調(diào)試，調(diào)試起來方便快捷 </p> <p> <br /> 遂寧雷達液位計廠家</p><p style="text-indent:25px">成都皖川科技有限公司創(chuàng)建于2011-12-30，注冊資金 100-200萬元，辦公設(shè)施齊全，辦公環(huán)境優(yōu)越，已***實行網(wǎng)絡(luò)化辦公，**提高了速度和效率。在成都皖川科技近多年發(fā)展歷史，公司旗下現(xiàn)有品牌皖纜等。公司堅持以客戶為中心、研發(fā)、銷售計算機軟硬件;計算機系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機械設(shè)備、閥門、水泵、電線電纜、通訊器材(不含無線廣播電視發(fā)射及衛(wèi)星地面接收設(shè)備)、醫(yī)療器械(***一類)、實驗設(shè)備、化工產(chǎn)品(不含危險化學(xué)品)、五金交電、照明設(shè)備。市場為導(dǎo)向，重信譽，保質(zhì)量，想客戶之所想，急用戶之所急，全力以赴滿足客戶的一切需要。成都皖川科技有限公司主營業(yè)務(wù)涵蓋[ "耐磨熱電偶", "氣體檢測儀器", "便攜式氣體報警控制器", "雙金屬溫度計" ]，堅持“質(zhì)量***、質(zhì)量服務(wù)、顧客滿意”的質(zhì)量方針，贏得廣大客戶的支持和信賴。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/464167.html</p></div></div></div></div></div><div id="8bdkhj8" class="page-right twoColRt"><div id="utqs2o3" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="tse7ahj" 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