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src="http://tyunfile.71360.com/UploadFile/cdwckj/637110755941025391/7837117.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="jco88p2" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UploadFile/cdwckj/637110755941025391/7837117.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="lub8osu" 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>眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè),射頻導(dǎo)納物位開關(guān)</p><p><span>***更新：</span>2020-10-15 14:05:39</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="7iyahof" 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="o2rtahy" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="2grovm8" class="box"><p><p> 射頻導(dǎo)納物位開關(guān)關(guān)于射頻導(dǎo)納的原理 </p> <p> 射頻導(dǎo)納的原理是通過探頭感知其與儲罐體間電抗（容抗和阻抗）的變化實(shí)現(xiàn)物位測量和控制的。其內(nèi)部電子單元，由探頭測量極與空載罐體間的電抗共同構(gòu)成平衡電橋電路并產(chǎn)生一個穩(wěn)定振蕩信號，當(dāng)被測介質(zhì)覆蓋探頭測量極時，眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè)，會引起探頭測量極與罐體間的電抗變化導(dǎo)致電橋電路不平衡而停止產(chǎn)生振蕩信號，后級電路檢測到這一變化從而輸出報警信號。 </p> <p> 該振蕩信號作為射頻信號施加在探頭測量極的同時，眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè)，還經(jīng)過1:1的電壓跟隨器后送往探頭的保護(hù)極，測量極與保護(hù)極的射頻信號具有等電位，眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè)、同相位、同頻率又互相隔離。當(dāng)探頭有掛料時，測量極與保護(hù)極之間因?yàn)闆]有電勢差而形成電氣隔離確保保護(hù)極的信號變化不影響檢測，使探頭測量極上電抗的變化只能由探頭測量極與罐體間的物料決定，從而使探頭上的掛料不會影響正常檢測。眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè),射頻導(dǎo)納物位開關(guān)" src="http://tyunfile.71360.com/UploadFile/cdwckj/637110755941025391/7837117.jpg"></div><p> RBSPA射頻導(dǎo)納物位控制器采用三端Cote – Shield 技術(shù)，排除探測極棒上粘附物料對控制作用的影響。電子線路中產(chǎn)生的高頻信號，一路直接送往探測極棒上，另一路經(jīng)過一個RF電壓跟隨器送往防粘附保護(hù)套上。其大小相位都是與加在探測極棒上的信號相同。當(dāng)有物料粘附在探頭上時，由于保護(hù)套與倉壁之間構(gòu)成一個電容，所以加在保護(hù)套上的高頻信號就會使該電容趨向飽和，以致探頭上的高頻信號就無法通過粘附層流入容器壁，當(dāng)容器內(nèi)大量物料接觸探頭時，探頭上的電流繞過飽和區(qū)流向容器壁，從而產(chǎn)生有物料存在的信號。眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè),射頻導(dǎo)納物位開關(guān)" src="http://tyunfile.71360.com/UploadFile/cdwckj/637110755940976563/9911606.jpg"></div><p> 在了解關(guān)于射頻導(dǎo)納物位開關(guān)的知識之前需要了解一下射頻導(dǎo)納 </p> <p> 一、射頻導(dǎo)納的概念 </p> <p> 射頻導(dǎo)納是一種從電容式物位技術(shù)發(fā)展起來的新型物位控制技術(shù)，是對電容式物位技術(shù)的升級，具有防掛料、更可靠、更準(zhǔn)確、適用性更廣的特點(diǎn)。要了解射頻導(dǎo)納的概念，我們需要先知道射頻和導(dǎo)納的含義。射頻即高頻無線電波譜，而導(dǎo)納的含義則為電學(xué)中阻抗的倒數(shù)，它由電阻性成分、電容性成分、感性成分綜合而成，所以射頻導(dǎo)納可以理解為一種利用高頻（即射頻）電波來測量電子元件特性參數(shù)的儀表。 </p><p> SC-SP700射頻導(dǎo)納物位計(jì)典型應(yīng)用： </p> <p> 導(dǎo)電、絕緣液體…………化工、油田、水及污水處理 </p> <p> 導(dǎo)電、絕緣漿體…………造紙、制藥、水及污水處理 </p> <p> 粉末：灰、粉……………電廠、冶金、水泥 </p> <p> 顆粒：煤、糧食…………電廠、冶金、糧食 </p> <p> 界面：不同兩種液體……油田、化工 </p> <p> 射頻導(dǎo)納物位計(jì)性能指標(biāo)： </p> <p> 供電：18V—30VDC </p> <p> 火花防護(hù)（對傳感器）：內(nèi)置火花防護(hù)電路 </p> <p> 輸出：4—20MA </p> <p> 電氣接口：M20×1.5 </p> <p> 輸出方式：物位方式或距離方式 </p> <p> 電纜：分體式電子單元與傳感器之間的**連接電纜標(biāo)準(zhǔn)5m，長50m </p> <p> 精度：±0.5% ±0.2% </p> <p> 環(huán)境溫度：-40℃～70℃ </p> <p> 過程連接：NPT螺紋安裝（標(biāo)準(zhǔn)） </p> <p> 介質(zhì)溫度：-100℃～260℃ </p> <p> 法蘭安裝：（可選） </p> <p> 負(fù) 載：24VDC 350Ω </p> <p> 外殼防護(hù)：IP66 </p> <p> 負(fù)載影響：0.2% </p> <p> 防爆：EXID Ⅱ CT4 </p> <p> 響應(yīng)時間：0.5s（表尊） 0.5～30s（可調(diào)） </p> <p> 量程：15000PF，距離100m（不同傳感器量程不同） </p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè),射頻導(dǎo)納物位開關(guān)" src="http://tyunfile.71360.com/UploadFile/cdwckj/637110755935234375/7371474.jpg"></div><p> NL2000 射頻導(dǎo)納物位開關(guān)是電容式物位開關(guān)的換代產(chǎn)品，解決了物料粘附問題，相比其它同類產(chǎn)品具有更高的系統(tǒng)穩(wěn)定性。即使在極端惡劣的現(xiàn)場條件下，也能可靠工作，而不受掛料、溫度、壓力、材料密度、濕度、甚至物料化學(xué)特性變化的影響。 </p> <p> 二、產(chǎn)品特點(diǎn) </p> <p> 1. 通用性強(qiáng)：廣泛應(yīng)用于各種物料的檢測，飛灰、顆粒、粉體、液體、粘稠、導(dǎo)電、不導(dǎo)電的物料均可； </p> <p> 可以滿足不同的溫度、壓力的測量要求，比較高溫度可達(dá)800℃，比較高壓力可達(dá)5MPA;可用于腐蝕、沖 </p> <p> 擊等惡劣場所。 </p> <p> 2. 抗粘附性：獨(dú)特的電路設(shè)計(jì)和傳感器結(jié)構(gòu)，使測量對探頭上的物料忽略不計(jì)并自動校正，無需定期清 </p> <p> 潔，避免誤測量、誤信號。（防掛料）眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè)</p><p style="text-indent:25px">眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè)</p><p style="text-indent:25px">儀器儀表行業(yè)已經(jīng)連續(xù)多年保持了經(jīng)濟(jì)高位運(yùn)行的態(tài)勢。即使當(dāng)全球受金融風(fēng)暴的影響，各個行業(yè)經(jīng)濟(jì)東圃有所放緩，但從全景發(fā)展情況看來，儀表行業(yè)的增長速度并沒有放緩。進(jìn)一步提升我國儀器儀表技術(shù)和水平，有限責(zé)任公司（自然）企業(yè)要順應(yīng)產(chǎn)業(yè)發(fā)展潮流，在穩(wěn)固常規(guī)品種的同時，進(jìn)一步發(fā)展智能儀器儀表，提升產(chǎn)業(yè)數(shù)字化、智能化、集成化水平。隨著手機(jī)移動網(wǎng)絡(luò)的消費(fèi)潛力不斷隱現(xiàn)，消費(fèi)者利用手機(jī)消費(fèi)的頻率和份額逐年遞增。移動互聯(lián)網(wǎng)所隱藏的商業(yè)價值被更多地挖掘出來之后，各種傳統(tǒng)行業(yè)（包括耐磨熱電偶，氣體檢測儀器，便攜式氣體報警控制器，雙金屬溫度計(jì)行業(yè)）的移動網(wǎng)上平臺相繼誕生。隨著中國的不斷進(jìn)步，世界上只有一個救世主——市場，能救企業(yè)的只有你自己——自強(qiáng)，提高貿(mào)易型重點(diǎn)競爭力才是中國制造業(yè)的獨(dú)一出路。以顯微科學(xué)儀器行業(yè)的發(fā)展與變化為例，以親身的實(shí)踐為例，毛磊認(rèn)為，隨著經(jīng)濟(jì)的不斷發(fā)展，我國的環(huán)境和實(shí)力都發(fā)生了巨大變化，有了完全不同的基礎(chǔ)，這為國產(chǎn)科學(xué)儀器走向**增強(qiáng)了信心。眉山射頻導(dǎo)納物位開關(guān)哪家專業(yè)</p><p style="text-indent:25px">成都皖川科技有限公司致力于儀器儀表，以科技創(chuàng)新實(shí)現(xiàn)***管理的追求。成都皖川科技作為研發(fā)、銷售計(jì)算機(jī)軟硬件;計(jì)算機(jī)系統(tǒng)集成;銷售電子產(chǎn)品、儀器儀表、電氣設(shè)備、機(jī)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(shí)驗(yàn)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。的企業(yè)之一，為客戶提供良好的耐磨熱電偶，氣體檢測儀器，便攜式氣體報警控制器，雙金屬溫度計(jì)。成都皖川科技致力于把技術(shù)上的創(chuàng)新展現(xiàn)成對用戶產(chǎn)品上的貼心，為用戶帶來良好體驗(yàn)。成都皖川科技始終關(guān)注自身，在風(fēng)云變化的時代，對自身的建設(shè)毫不懈怠，高度的專注與執(zhí)著使成都皖川科技在行業(yè)的從容而自信。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/1566823.html</p></div></div></div></div></div><div id="bkmel3l" class="page-right twoColRt"><div id="peln23s" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="bqs3eu9" 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(qiáng) 信息推薦自業(yè)物資供應(yīng)" 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