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onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="dfjvxeq" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/ZRX888/637284365175302734/4158537.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gvkw3ln" class="content"><p><span>需求數量：</span>0</p><p><span>價格要求：</span>面議</p><p><span>所在地：</span>廣東省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產品關鍵詞：</span>湖北lcr電橋表選擇,lcr</p><p><span>***更新：</span>2020-08-20 01:17:38</p><p><span id="click" >瀏覽次數：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="kzbinzg" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">深圳市展榮新精密電子有限公司</a></p><p><span>聯(lián)系人：</span>喻孟峨</p><p><span>郵箱: </span>113527410@qq.com</p><p><span>電話: </span>15012892536</p><p><span>傳真: </span>0755_</p><p><span>網址: </span></p><p><span>手機: </span>0755-27923475</p><p><span>地址: </span>航城街道黃田社區(qū)崗貝工業(yè)區(qū)綜合樓10棟401</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="etqifmy" class="page-proshow02"><p class="title">詳細說明</p><div id="xrtq3ry" class="box"><p><p style="text-indent:25px">一般用戶將lcr數字電橋又稱這些為：LCR測試儀、LCR電橋、LCR表、LCRMeter等等。可以精確測量大量電子元件：廣普的測量對象半導體元件：電容器、電感器、磁芯、電阻器、變壓器、芯片組件和網絡元件等的阻抗參數測量。其它元件：印制電路板、繼電器、開關、電纜，湖北lcr電橋表選擇、電池等的阻抗評估。介質材料：塑料、陶瓷和其它材料的介電常數的損耗角評估。磁性材料：鐵氧體、非晶體和其它磁性材料的導磁率和損耗角評估，湖北lcr電橋表選擇。半導體材料：半導體材料的介電常數，湖北lcr電橋表選擇，導電率和C-V特性。新興傳感器技術作為傳感網的基礎元件,在今后將有十分廣闊的發(fā)展前景其中就包含LCR數字電橋.湖北lcr電橋表選擇</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北lcr電橋表選擇,lcr" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284365175302734/4158537.png"></div><p style="text-indent:25px">LCR測試儀測試原理：Vx與Vr均是矢量電壓表，Rr是理想電阻。LCR測試儀自平衡電橋的意思是：當DUT(Device Under Test)接入電路時，放大器的負反饋配置自動使得OP輸入端虛地。Vx準確測定DUT兩端電壓（DUT的Low電位是0），Vr與Rr測得DUT電流Ix，由此可計算Zx。LCR測試儀提高精度的方法是: 1,Hp,Lp,Hc,Lc盡量接近DUT; 2,減小測試電流Ix的回路面積&磁通量（關鍵是分析Ix，要配合使用Guard與Cable*小化回路面積);3,使用Gurard與Cable構建地平面中斷信號線間的電場連接，雖然會增加信號線的對地電容（對地電容不影響測試結果），但是會減少信號線的互容。Guard與Cable的對地寄生阻抗（Zhg,Zlg) 不影響測試結果，電橋平衡時Zlg的兩端電壓是0，流向Rr的電流不會被Zlg分流，Zhg的分流作用不影響Hp的電壓測量。湖北lcr電橋表選擇LCR數字電橋使用內部/外部直流偏置，結合各種掃描測試功能，可以精確地分析磁性材料、電感器件的性能。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北lcr電橋表選擇,lcr" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284365269062500/8221799.png"></div><p style="text-indent:25px">怎樣選擇串聯(lián)和并聯(lián)測試參數? (1)可以兩個不同的測試頻率下?lián)p耗因子的變化性來決定，若頻率升高而損耗增加，則應選用串聯(lián)等效電路若頻率升高而損耗減小，則應選用并聯(lián)等效電路。對于電感來說，情況正好與電容相反。實際中器件的D 不可能與頻率完全成正比關系，其可能有并聯(lián)成分，也可能有串聯(lián)成分，應看何種成分占主導。(2)根據元件的使用情況來判定。如用于信號耦合電容，則優(yōu)先選擇串聯(lián)方式，旁路或并聯(lián)諧振則使用并聯(lián)等效電路。習慣上說低阻抗元件用串聯(lián)，從數值上說阻抗小于100歐姆一定用串聯(lián)，大于10千歐用并聯(lián)，(100歐姆-10千歐)根據實際情況選擇。</p><p style="text-indent:25px">隨著現代模擬和數字技術的發(fā)展，特別是高速運放，微處理器技術的發(fā)展，現代阻抗測量大都使用自動平衡電橋法。首先由信號源發(fā)生一個一定頻率和幅度的正弦交流信號，這個信號加到被測件DUT上產生電流流到虛地“0V”，由于運放輸入電流為零，所以流過DUT的電流完全流過Rr，根據歐姆定律DUT的阻抗：Z = V1*Rr/V2。因為運算放大器虛地功能的引入，使這種測量方法的精度和抗干擾能力產生了質的飛躍。當然，以上只是一個比較抽象化的原理模型，真正的產品要復雜的多。LCR測試儀為了進行負荷校正，首先需要準備好標準器具或者已知準確值的零部件。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="湖北lcr電橋表選擇,lcr" src="https://tyunfile.71360.com/UploadFile/ZRX888/637284364641103516/5916712.png"></div><p style="text-indent:25px">LCR電橋使用中注意讀數及測量條件顯示:1.儀器的6位顯示不一定全部是有效顯示，在某些測量中測量數據的未尾值可能跳動較大，應舍去這些跳動數值，讀取其穩(wěn)定值。2.一般使用自動量程進行測量，以保證選擇到正確的量程，操作到手動方式可以觀察實際工作量程。應用于同批同種測量元件的批量測試時，可以選擇量程鎖定模式工作。3.串--并聯(lián)指示:雖然電橋具有顯示串聯(lián)或并聯(lián)等效值的選擇性，但在不利的Q值情況下，用上述兩種方式均不可能獲得基本準確度。當需要改動某一顯示方式以便提高基本準確度時，電橋通過下標s表示串聯(lián)，下標p表示并聯(lián)。4.頻率提示:200μF～2000μF的電容，200H～2000H的電感，測量頻率在100Hz只能獲得基本準確度。同樣，200pF～2nF的電容和200μH～2mH的電感，只有在1KHz測量頻率上才能獲得基本準確度，因此獲得極好測試性能，應選擇更合適的測試頻率。LCR測試夾具或測試電纜應保持清潔，以保證被測件接觸良好，夾具簧片調整至適當的松緊程度.湖北lcr電橋表選擇</p><p style="text-indent:25px">lcr電橋，采用SMT表面貼裝工藝，測量速度快，讀數穩(wěn)定。湖北lcr電橋表選擇</p><p style="text-indent:25px">關于LCR數字電橋的測量對象問題，相信大家了解的應該也是比較少的。1.無源元件：電容器、電感器、磁芯、電阻器、變壓器、芯片組件和網絡元件等的阻抗參數測量。2.半導體元件：電容器、電感器、磁芯、電阻器、變壓器、芯片測試儀組LCR數字電橋的測量對象的介紹件和網絡元件等的阻抗參數測量。3.其它元件：印制電路板、繼電器、開關、電纜、電池等的阻抗評估。4.介質材料：塑料、陶瓷和其它材料的介電常數的損耗角評估。5.磁性材料：鐵氧體、非晶體和其它磁性材料的導磁率和損耗角評估。6.半導體材料：半導體材料的介電常數，導電率和C-V特性。7.液晶材料：液晶單元的介電子常數、彈性常數等C-V特性。湖北lcr電橋表選擇</p><p style="text-indent:25px">深圳市展榮新精密電子有限公司成立于2018-10-10，專業(yè)一般經營項目是：經營電子商務，國內貿易，經營進出口業(yè)務（以上法律、行政法規(guī)決定規(guī)定在登記前須經批準的項目除外，限制的項目須取得許可后方可經營）。許可經營項目是：變壓器檢測儀表的開發(fā)及生產、變壓器綜合測試儀的開發(fā)及生產、線材測試儀的開發(fā)及生產、儀器儀表的開發(fā)及生產、銷售。等多項業(yè)務，主營業(yè)務涵蓋[ "變壓器電感平衡測試儀", "變壓器綜合測試儀", "高壓測試儀19053", "展榮新（臺儀達）系列產品" ]。公司目前擁有高技術人才5~10人人，以不斷增強企業(yè)核心競爭力，加快企業(yè)技術創(chuàng)新，實現穩(wěn)健生產經營。深圳市展榮新精密電子有限公司主營業(yè)務涵蓋[ "變壓器電感平衡測試儀", "變壓器綜合測試儀", "高壓測試儀19053", "展榮新（臺儀達）系列產品" ]，堅持“質量***、質量服務、顧客滿意”的質量方針，贏得廣大客戶的支持和信賴。一直以來公司堅持以客戶為中心、[ "變壓器電感平衡測試儀", "變壓器綜合測試儀", "高壓測試儀19053", "展榮新（臺儀達）系列產品" ]市場為導向，重信譽，保質量，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。</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/973594.html</p></div></div></div></div></div><div id="oyqnzln" class="page-right twoColRt"><div id="8rhwdpw" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="8bdahyk" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img 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