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class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="7tv8j2e" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218867236201172/9538462.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="3ug87zl" 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>江蘇省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>吉林電子線(xiàn)圈廠家</p><p><span>***更新：</span>2020-06-29 13:24:27</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="3coqxeq" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">無(wú)錫東英電子有限公司</a></p><p><span>聯(lián)系人：</span>朱淇華</p><p><span>郵箱: </span>wxdydz@163.com</p><p><span>電話(huà): </span>13921179070</p><p><span>傳真: </span>0510_</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0510-83785478</p><p><span>地址: </span>江蘇省無(wú)錫市錫山區(qū)錫北鎮(zhèn)新壩村</p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="apeqnf8" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="7yw2et8" class="box"><p><p> 電磁閥里有密閉的腔，在的不同位置開(kāi)有通孔，每個(gè)孔都通向不同的油管，腔中間是閥，兩面是兩塊電磁鐵，哪面的磁鐵線(xiàn)圈通電閥體就會(huì)被吸引到哪邊，通過(guò)控制閥體的移動(dòng)來(lái)檔住或漏出不同的排油的孔，吉林電子線(xiàn)圈廠家，而進(jìn)油孔是常開(kāi)的，液壓油就會(huì)進(jìn)入不同的排油管，然后通過(guò)油的壓力來(lái)推動(dòng)油缸的活塞，活塞又帶動(dòng)活塞桿，活塞竿帶動(dòng)機(jī)械裝置動(dòng)。這樣通過(guò)控制電磁鐵的電流就控制了機(jī)械運(yùn)動(dòng)，吉林電子線(xiàn)圈廠家，吉林電子線(xiàn)圈廠家。直動(dòng)式電磁閥工作原理通電時(shí)，電磁線(xiàn)圈產(chǎn)生電磁力把關(guān)閉件從閥座上提起，閥門(mén)打開(kāi)；斷電時(shí)，電磁力消失，彈簧把關(guān)閉件壓在閥座上，閥門(mén)關(guān)閉。分布直動(dòng)式電磁閥工作原理它是一種直動(dòng)式和先導(dǎo)式相結(jié)合的原理。常閉式：當(dāng)入口與出口沒(méi)有壓差時(shí)，通電后電磁力直接打開(kāi)先導(dǎo)孔連接主閥活塞依次向上提起，閥門(mén)打開(kāi)；當(dāng)入口與出口達(dá)到啟動(dòng)壓差時(shí)，通電后，電磁力先打開(kāi)先導(dǎo)孔，主閥活塞上腔壓力下降，從而利用壓差和電磁力拉動(dòng)主活塞，閥口打開(kāi)；斷電時(shí)，靠彈簧復(fù)位關(guān)閉先導(dǎo)孔，主活塞上腔增壓，推動(dòng)主活塞向下移動(dòng)，閥關(guān)閉。常開(kāi)式與常閉式相反。先導(dǎo)式電磁閥工作原理常閉式一一通電時(shí)，電磁力吸合先導(dǎo)孔閥芯，先導(dǎo)孔打開(kāi)，主閥活塞上腔壓力下降，在主活塞上腔和下腔形成上低下高的壓力。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林電子線(xiàn)圈廠家" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218867236201172/9538462.png"></div><p> 而對(duì)中間繼電器線(xiàn)圈軟故障還未有成熟的檢測(cè)方式，目前的現(xiàn)狀是：通過(guò)外接諧振電容利用諧振原理計(jì)算繼電器線(xiàn)圈在未投入使用前與使用一段時(shí)間后振蕩頻率變化，通過(guò)使用前后傳遞函數(shù)比值來(lái)判斷繼電器線(xiàn)圈絕緣老化缺點(diǎn)，對(duì)線(xiàn)圈進(jìn)行老化檢測(cè)；另一種方式是通過(guò)檢測(cè)直流電阻的變化來(lái)實(shí)現(xiàn)對(duì)線(xiàn)圈老化的檢測(cè)?，F(xiàn)有的檢測(cè)方法普遍比較復(fù)雜而且不能很好的實(shí)現(xiàn)對(duì)繼電器線(xiàn)圈軟故障的有效檢測(cè)。技術(shù)實(shí)現(xiàn)要素：針對(duì)現(xiàn)有繼電器線(xiàn)圈檢測(cè)方法復(fù)雜及不能有效檢測(cè)軟故障的問(wèn)題，本發(fā)明提供一種中間繼電器線(xiàn)圈軟故障檢測(cè)方法。本發(fā)明的一種中間繼電器線(xiàn)圈軟故障檢測(cè)方法，所述方法包括：s1、建立兩組數(shù)據(jù)樣本：a組和b組，a組為中間繼電器線(xiàn)圈正常的散射參數(shù)，b組為中間繼電器線(xiàn)圈軟故障后，得到的散射參數(shù)；s2、獲取待測(cè)中間繼電器線(xiàn)圈的散射參數(shù)，將該散射參數(shù)分別加入s1建立的a組和b組中，進(jìn)行聚類(lèi)，若待測(cè)中間繼電器的散射參數(shù)與a組為一類(lèi)，則確定待測(cè)中間繼電器正常，若待測(cè)中間繼電器的散射參數(shù)與b組為一類(lèi)，則確定待測(cè)中間繼電器出現(xiàn)軟故障；所述散射參數(shù)包括相頻特性中相角為零對(duì)應(yīng)的頻率。作為推薦，所述s2還包括：當(dāng)確定待測(cè)中間繼電器線(xiàn)圈為軟故障。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="吉林電子線(xiàn)圈廠家" src="https://tyunfile.71360.com/WaterMark/UploadFile/dongying/637218591383662110/1606588.jpg"></div><p> 可以用于中間繼電器軟故障的檢測(cè)。下面，我們加入幾組已知是否損壞的待測(cè)中間繼電器進(jìn)行分析，待測(cè)中間繼電器具體參數(shù)如表二所示，待測(cè)1、待測(cè)2、待測(cè)3為正常中間繼電器，其余3組為存在軟故障的繼電器。表2待測(cè)中間繼電器阻抗特性參數(shù)(單位/mhz)編號(hào)待測(cè)1待測(cè)2待測(cè)3待測(cè)4待測(cè)5待測(cè)6頻率，再利用特定聚類(lèi)方法進(jìn)行分類(lèi)，得到的結(jié)果如圖3所示。由圖3所示的聚類(lèi)結(jié)果可以看出，待測(cè)1、2、3組的數(shù)據(jù)被劃分到初始數(shù)據(jù)中的一組組成一大類(lèi)，待測(cè)4、5、6組數(shù)據(jù)與初始數(shù)據(jù)中的二組組成了新的一大類(lèi)，這表明待測(cè)1、2、3組的中間繼電器是正常的，待測(cè)4、5、6組的中間繼電器是存在軟故障的，與實(shí)際情況相符，完成了軟故障的檢測(cè)。在將故障組的組數(shù)減少后，得到的結(jié)果如圖4所以，仍然能夠檢測(cè)出存在軟故障的中間繼電器。以上實(shí)驗(yàn)結(jié)果表明，本文提出的基于中間繼電器線(xiàn)圈高頻阻抗特性的繼電器軟故障檢測(cè)方法是完全實(shí)際操作和運(yùn)用的，有很大的使用價(jià)值，可以應(yīng)用于中間繼電器的軟故障檢測(cè)，能在中間繼電器的定期維護(hù)中有效的檢測(cè)出存在軟故障的器件，避免發(fā)展為硬故障給生產(chǎn)生活造成損失，為生產(chǎn)生活提供便利。同時(shí)，為了提高軟故障檢測(cè)精度，可以增加初始的對(duì)比樣本組數(shù)。</p></p><br /><p>文章來(lái)源地址: http://m.cdcfah.com/cp/435745.html</p></div></div></div></div></div><div id="mq9oqxr" class="page-right twoColRt"><div id="a8amdkr" class="box01 margin10 clearfix"><h3><a 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