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class="nybanner"><img src="/skins/106676/images/nybanner.jpg"></div> <script src="http://www.chem17.com/mystat.aspx?u=mbdzkj"></script>  <div id="iqaqewgi6e" class="ncontent w_1100"> <div id="iqaqewgi6e" class="h-6">技術(shù)文章<span>您當(dāng)前的位置：<a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > QJ23直流單臂電橋的優(yōu)點</span></div>  <div id="iqaqewgi6e" class="n-3 c-news"> <div id="iqaqewgi6e" class="newsnr"> <h1>QJ23直流單臂電橋的優(yōu)點</h1> <p class="source"><span>日期：2022-05-26</span><span>瀏覽：1789次</span></p> <div> <p><span style="font-size: 16px;"><strong>QJ23直流單臂電橋的優(yōu)點</strong></span><br/></p><p><span style="font-size: 16px; color: rgb(0, 0, 0);"> <span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px; font-family: "Microsoft YaHei";">直流單臂電橋<span style="font-size: 16px; box-sizing: border-box;">采用惠斯登電橋線路。在其范圍內(nèi)的電阻極為方便，具有內(nèi)附指零儀及電源，整個測量機(jī)構(gòu)裝在金屬外殼內(nèi)，輕便且便攜帶，適用于實驗室及現(xiàn)場使用。直流電橋是一種利用比較法進(jìn)行測量的電學(xué)測量儀器，下面就由</span>上海雙特<span style="font-size: 16px; box-sizing: border-box;">給大家簡要介紹。</span></span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px; font-family: "Microsoft YaHei";"> 單臂電橋又稱惠斯頓電橋，當(dāng)需要地測量中值電阻時，往往采用單臂電橋進(jìn)行測量。其原理如圖1所示。圖中Rx為被測電阻，G 為檢流計， Rl 、R2 、R3為可調(diào)電阻。當(dāng)滿足關(guān)系式R1 R3 = R2 Rx 時 , 電路達(dá)到平衡。此時檢流計中通過的電流為零（指針不動）。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px; font-family: "Microsoft YaHei";"> 直流單臂電橋的特點：</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px; font-family: "Microsoft YaHei";"> 1、本產(chǎn)品系一單電橋，主要由比例臂、比較臂、放大臂、指零儀及電池組等組合而成。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px; font-family: "Microsoft YaHei";"> 2、比較臂由四個十進(jìn)盤組成，可調(diào)11110歐，進(jìn)為1歐。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px; font-family: "Microsoft YaHei";"> 3、放大器采用運算放大器，接在指零儀的輸入端，以提高指零儀的靈敏度。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px; font-family: "Microsoft YaHei";"> 4、所有線繞電阻均采用高穩(wěn)定性錳銅電阻絲，以無感式繞制在磁骨加上。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; white-space: normal; background-color: rgb(255, 255, 255);"/><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px; font-family: "Microsoft YaHei";"> 5、QJ23直流單臂電橋性能穩(wěn)定，靈敏度高，數(shù)據(jù)準(zhǔn)確。</span></span></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-3022384.html">QJ44型攜帶式直流雙臂電橋用途</a></p> <p>下一篇：<a href="/Article-3022351.html">QJ44雙臂電橋的注意事項和維護(hù)保養(yǎng)</a></p> </div> <div id="iqaqewgi6e" class="clear"></div> </div> </div> <div id="iqaqewgi6e" class="n-9"> <div id="iqaqewgi6e" class="c-right"> <div id="iqaqewgi6e" class="c-1 r-pro"> <div id="iqaqewgi6e" class="c-left"> <div id="iqaqewgi6e" class="h-2"><a href="/products.html">產(chǎn)品分類</a></div> <ul> <li><a href="/ParentList-1388067.html" onmouseover="showsubmenu('大電流發(fā)生器')" 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style="display:none"> <ul> <li><a href="/SonList-1325000.html">> KT7900無線高低壓核相儀</a></li> <li><a href="/SonList-1341633.html">> 無線高低壓核相儀</a></li> <li><a href="/SonList-1324999.html">> 無線高壓核相儀</a></li> <li><a href="/SonList-1324998.html">> 高低壓無線語音核相儀</a></li> <li><a href="/SonList-1324997.html">> 高壓無線核相器</a></li> <li><a href="/SonList-1324687.html">> 相序表</a></li> </ul> </div> </li> <li><a href="/ParentList-1326712.html" onmouseover="showsubmenu('高壓開關(guān)動特性測試儀')" class="yj">高壓開關(guān)動特性測試儀</a> <div class="iqaqewgi6e" id="submenu_高壓開關(guān)動特性測試儀" style="display:none"> <ul> <li><a href="/SonList-1416891.html">> 變壓器有載開關(guān)參數(shù)測試儀</a></li> <li><a href="/SonList-1326715.html">> 回路電阻測試儀</a></li> <li><a href="/SonList-1326718.html">> GKC-F高壓開關(guān)機(jī)械特性測試儀</a></li> <li><a href="/SonList-1326717.html">> 高壓開關(guān)動特性測試儀</a></li> <li><a href="/SonList-1326716.html">> 高低壓開關(guān)柜通電試驗臺</a></li> </ul> </div> </li> <li><a href="/ParentList-1324448.html" 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