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src="/skins/333987/images/prodetail_cs_icon.png" /><span>訪問量：</span>1298</li> </ul> <div id="sh7gbfdki" class="pro_detail_btn"> <a href="/order.html" class="prodtl_btn1">產品咨詢</a><a href="/contact.html" class="prodtl_btn2">聯系我們</a> </div> </div> <div id="sh7gbfdki" class="clear"></div> </div>  </div> <div id="sh7gbfdki" class="lhtab"><span id="sh7gbfdki" class="on span1">產品詳情</span><span id="sh7gbfdki" class="span2">在線留言</span></div> <div id="sh7gbfdki" class="page-procon"> <p><strong>DZY-2000L<strong>電纜路徑儀</strong></strong><br /><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px"> 路徑儀由信號發(fā)生器、功率放大器、接收器等部分組成。當電纜路徑測試儀輸出的正弦波信號加到電纜上時，在電纜周圍有電磁場存在，利用磁電傳感器（感應線圈）將電磁波轉換為電信號，通過放大器放大，再由蜂鳴器或耳機轉換為聲波信號，同時可以用表頭反映出信號的變化。當線圈位于電纜正上方并垂直于地面時，線圈的感應電動勢zui?。划斁€圈垂直于地面并偏離電纜一定距離時，通過線圈的磁力線增加，線圈的感應電動勢增大（圖9）。利用這一原理即可對電纜的路徑進行探測。</span> <br /><br /><strong>DZY-2000L<strong>電纜路徑儀</strong></strong><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">主要技術參數</span><br /><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">測試信號：正弦波，頻率 1KHz、30 KHz；</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">輸出功率： 30W；</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">電源電壓：交流220V± 10﹪，50Hz±1﹪；</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">外形尺寸： 220×210×80；</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">重量： 0.5kg；</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">使用環(huán)境溫度：-10 - 40℃ ；</span><br /><br /><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px"><strong>電纜路徑儀</strong>圖片</span><br /><img alt="" src="http://i01.yizimg.com/ComFolder/305761//201309/%E6%88%AA%E5%9B%BE20130910113025.jpg" style="height:auto; margin:0px auto 5px; width:277px" /><br /><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">　產品的成套性</span><br /><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">路徑信號發(fā)生器 1 臺;</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">路徑信號接收器 1 臺;</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">輸出連接電纜線 1 根;</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">接收連接線 1 根;</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">探棒 1 根;</span><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">耳機 1 個;</span><br /><br /><br /><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">路徑儀工作示意圖</span><br /><br /><img alt="" src="http://i01.yizimg.com/ComFolder/305761//201309/%E6%88%AA%E5%9B%BE20130910113053.jpg" style="height:auto; margin:0px auto 5px; width:650px" /><br /><br /><span style="color:rgb(0,0,0); font-family:tahoma,verdana,geneva,arial,helvetica,sans-serif; font-size:12px">由上圖可知使探棒線圈軸線垂直于地面，慢慢移動，當線圈位于電纜正上方且垂直于電纜時，磁力線與線圈平面平行，沒有磁力線穿過線圈，線圈內無感應電動勢產生，耳機中聽不到聲響，且表頭指針指示zui小。然后將探棒先后向兩邊移動，就有一部分磁力線穿過線圈，產生感應電動勢，耳機中開始聽到音頻響聲，且表頭指針逐漸增大。隨著探棒緩慢移動，聲響逐漸變大，當移動到某一距離時，響聲zui大，再往遠處移動，響聲又逐漸減弱。在電纜附近，聲響與其位置關系形成一馬鞍形曲線，曲線谷點所對應的測試位置即電纜所經過的路徑。</span></p> <div id="sh7gbfdki" class="pagetb"> <p> 上一條：<a 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