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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="0awqwok" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407041375372566/2338654.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="eycgkic" 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>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>防腐靜電容控制開(kāi)關(guān)哪家正規(guī),物位開(kāi)關(guān)</p><p><span>***更新：</span>2021-02-06 03:15:40</p><p><span id="click" >瀏覽次數(shù)：8次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="2mqmw0g" 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(jī): </span>021-57488360</p><p><span>地址: </span>海灣旅游區(qū)莘奉公路4960號(hào)110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="iqo0mic" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="eyuiugm" class="box"><p><p style="text-indent:25px">射頻導(dǎo)納物位開(kāi)關(guān)測(cè)量原理：會(huì)遇到有物料附著于其上情形，并在三個(gè)電極間形成電容與電阻，因主電極與保護(hù)電極間的電位及波形一樣，所以不會(huì)有電流通過(guò)兩電極的介質(zhì)，防腐靜電容控制開(kāi)關(guān)哪家正規(guī)，導(dǎo)納式物位開(kāi)關(guān)利用以上的原理，于主電極與接地電極間置一保護(hù)電極，以阻擋射頻電流經(jīng)由主電極與接地電極間的介質(zhì)而到達(dá)桶壁。保護(hù)電極與接地電極間雖然會(huì)有少量的射頻電流通過(guò)，但電路并不會(huì)偵測(cè)此一電流值。由于保護(hù)電極的作用，防腐靜電容控制開(kāi)關(guān)哪家正規(guī)，只有介于主電極與桶壁間所通過(guò)的射頻電流變化會(huì)被電路所偵測(cè)，因此當(dāng)探棒接觸到物料時(shí)，會(huì)產(chǎn)生一準(zhǔn)確的信號(hào)準(zhǔn)位，該信號(hào)準(zhǔn)位的大小與介電系數(shù)成正比，但與電阻值成反比，防腐靜電容控制開(kāi)關(guān)哪家正規(guī)，此信號(hào)很容易被電路偵測(cè)出來(lái)，并輸出一控制信號(hào)。音叉式物位控制器的工作原理是通過(guò)安裝在音叉基座上的一對(duì)壓電晶體使音叉在一定共振頻率下振動(dòng)。防腐靜電容控制開(kāi)關(guān)哪家正規(guī)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="防腐靜電容控制開(kāi)關(guān)哪家正規(guī),物位開(kāi)關(guān)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407041375372566/2338654.png"></div><p style="text-indent:25px">阻旋式料位開(kāi)關(guān)的保養(yǎng)：先用干細(xì)棉布或擦拭紙擦拭儀器外表,以擦拭其灰塵或油污等,小心注意其儀器外表勿受傷;再用干凈細(xì)干棉布沾上工業(yè)用酒精,擦拭儀器外表,尤其金屬及非金屬表面。用拭鏡紙輕輕擦拭鏡面表面,勿用力以免傷及鏡面;再用棉花棒沾工業(yè)用酒精,輕輕擦拭鏡面表面,并需等酒精揮發(fā)后,再裝回去;鏡面擦拭可區(qū)分成校正玻璃片及鏡頭內(nèi)透鏡組,由于灰塵粒子會(huì)造成成像的黑點(diǎn),鏡面擦拭至為重要,裝置后需重新借著影像觀察擦拭結(jié)果。也可使用吹氣壺,將灰塵吹掉;必要時(shí),可再用干凈細(xì)干棉布沾上工業(yè)用酒精或潤(rùn)滑油,擦拭磨擦表面。常州料位開(kāi)關(guān)報(bào)價(jià)音叉物位開(kāi)關(guān)也常被稱作音叉物位計(jì)或者音叉物位控制器。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="防腐靜電容控制開(kāi)關(guān)哪家正規(guī),物位開(kāi)關(guān)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039860196796/3519009.png"></div><p style="text-indent:25px">阻旋料位開(kāi)關(guān)使用與保養(yǎng)：1、阻旋料位開(kāi)關(guān)安裝使用前請(qǐng)確認(rèn)電源電壓是否與標(biāo)識(shí)上面的電壓一致，并參照使用說(shuō)明書(shū)進(jìn)行安裝。2、阻旋料位計(jì)安裝時(shí)應(yīng)避免安裝在進(jìn)料口正下方，物料落下后直接落在葉片上容易造成料位開(kāi)關(guān)葉片受損，當(dāng)無(wú)法避免時(shí)可加裝防護(hù)擋板，以保護(hù)葉片不受物料沖擊造成誤動(dòng)作。3、阻旋式料位開(kāi)關(guān)在室外料倉(cāng)側(cè)壁水平安裝時(shí)，接線盒的入線口應(yīng)垂直向下，電纜固定螺母必須鎖緊，如工況允許的情況下可加防雨罩等，避免雨水滲透儀表殼體內(nèi)損壞電路板。4、阻旋料位開(kāi)關(guān)安裝在料倉(cāng)之前需要確認(rèn)是水平安裝還是垂直安裝，斜插安裝還是頂部安裝。5、阻旋料位開(kāi)關(guān)在水平安裝時(shí)葉片需水平向下呈10～20°的夾角安裝，以減少物料對(duì)儀表的沖擊。</p><p style="text-indent:25px">物位開(kāi)關(guān)在物料類型方面，主要區(qū)分固體、液體物料。一般地，振棒料位開(kāi)關(guān)、音叉料位開(kāi)關(guān)、射頻導(dǎo)納料位開(kāi)關(guān)均為固體類物料測(cè)量產(chǎn)品，音叉液位開(kāi)關(guān)為液體類物料測(cè)量產(chǎn)品。需要說(shuō)明的是，很多音叉物位開(kāi)關(guān)，一般都標(biāo)稱既可以測(cè)量固體物料也可以測(cè)量液體物料，這種固液不分的產(chǎn)品往往可靠性差，特別是在工況惡劣、物料黏稠、物料低密度或高密度時(shí)，更顯得工作不穩(wěn)定和不可靠。而進(jìn)口品牌和極個(gè)別國(guó)內(nèi)企業(yè)（如計(jì)為自動(dòng)化）會(huì)分別設(shè)計(jì)**于測(cè)量固體物料的音叉料位開(kāi)關(guān)和**于測(cè)量液體的音叉液位開(kāi)關(guān)，其目的就是提高產(chǎn)品工作的可靠性和適應(yīng)性。物位開(kāi)關(guān)側(cè)裝時(shí)螺紋安裝管盡可能得短，使探極螺紋端部和槽內(nèi)壁齊平，避免根部積料。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="防腐靜電容控制開(kāi)關(guān)哪家正規(guī),物位開(kāi)關(guān)" src="https://tyunfile.71360.com/UploadFile/yierdianzi/637407039920060058/3424093.png"></div><p style="text-indent:25px">音叉物位開(kāi)關(guān)也常被稱作音叉物位計(jì)或者音叉物位控制器，主要是因?yàn)橐舨嫖镂挥?jì)在工業(yè)生產(chǎn)中的不同環(huán)節(jié)出現(xiàn)，實(shí)際所起的關(guān)鍵性作用不同，人們便習(xí)慣性的叫出了許多不同稱呼。音叉物位開(kāi)關(guān)是物位開(kāi)關(guān)的一種，主要利用音叉諧振原理來(lái)測(cè)量物位狀態(tài)，其獨(dú)特的叉體設(shè)計(jì)及其固有的振動(dòng)特性，能保證音叉的自動(dòng)掃除功能并較大限度地防止掛料。音叉式物位開(kāi)關(guān)振幅可調(diào)，便于測(cè)量不同狀態(tài)和密度的物料，適用于各種料倉(cāng)固體物料料位以及各種容器內(nèi)液位的定點(diǎn)檢測(cè)報(bào)警或控制。固體物料：粉煤灰、水泥、石粉、塑料顆粒、鹽、糖等。液體介質(zhì)：水、酸、堿、泥漿、燃料、油類、牛奶、酒類、飲料等。特性：測(cè)量介質(zhì)：干燥顆粒、粉狀物料及各種液體、漿體等。選用物位開(kāi)關(guān)時(shí)還需根據(jù)被測(cè)物料溫度，選擇與之相適應(yīng)的耐溫產(chǎn)品。防腐靜電容控制開(kāi)關(guān)哪家正規(guī)</p><p style="text-indent:25px">微波物位開(kāi)關(guān)由發(fā)射器和放大器組成。防腐靜電容控制開(kāi)關(guān)哪家正規(guī)</p><p style="text-indent:25px">射頻導(dǎo)納物位開(kāi)關(guān)穩(wěn)定的振蕩信號(hào)作為射頻信號(hào)施加在探頭測(cè)量極的同時(shí)，還經(jīng)過(guò)內(nèi)部電路中的1：1電壓跟隨器結(jié)構(gòu)送往探頭的保護(hù)極，此時(shí)測(cè)量極與保護(hù)極的射頻信號(hào)具有等電位、同相位、同頻率又互相隔離的特征。當(dāng)探頭有掛料時(shí)，射頻導(dǎo)納式物位開(kāi)關(guān)測(cè)量極與保護(hù)極之間因?yàn)闆](méi)有電勢(shì)差而形成電氣隔離，確保了保護(hù)極的信號(hào)變化不影響檢測(cè)，使探頭測(cè)量極上電抗的變化只能由探頭測(cè)量極與罐體間的物料決定，使探頭上的掛料不會(huì)影響到正常檢測(cè)。防腐靜電容控制開(kāi)關(guān)哪家正規(guī)</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/3184879.html</p></div></div></div></div></div><div id="q80mkyg" class="page-right twoColRt"><div id="c8uieea" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="i0m8kgi" 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)" class="vcenter" 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