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class="inside_rnewtime">點(diǎn)擊次數(shù)：894 更新時(shí)間：2022-10-09</div> <div id="nxnzvbt5" class="inside_rnewcon"><p><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); color: rgb(0, 0, 0);"><span style="color:#666666;font-family:Microsoft YaHei"><span style="box-sizing: border-box; background-color: rgb(255, 255, 255); font-size: 16px;"><strong>QJ44直流雙臂電橋【上?？档请姎狻康淖饔?/strong></span></span><br/></span></p><p><span style="font-size: 16px; color: rgb(0, 0, 0);"><span style="font-size: 16px; box-sizing: border-box; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255); font-family: "Microsoft YaHei";"><strong style="box-sizing: border-box;">直流雙臂電橋</strong>測(cè)量出來(lái)的數(shù)值比較精確，因?yàn)槠錅y(cè)量原理是根據(jù)電橋兩端的電壓差進(jìn)行測(cè)量的，一點(diǎn)點(diǎn)小的電壓變化都能被電路及時(shí)反饋出來(lái)，下面就由<strong style="box-sizing: border-box;">上?？档?/strong>給大家簡(jiǎn)要介紹。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; background-color: rgb(255, 255, 255);"/><span style="font-size: 16px; box-sizing: border-box; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255); font-family: "Microsoft YaHei";"> 直流雙臂電橋是采用凱爾文線路寬量程的攜帶式精密型直流電橋。產(chǎn)品置有指零儀并能內(nèi)附工作電源。適宜工礦企業(yè)、科研單位的實(shí)驗(yàn)室及室、車(chē)間現(xiàn)場(chǎng)或野外工作場(chǎng)所對(duì)直流低電阻作精確測(cè)量。是電線電纜行業(yè)規(guī)程</span>產(chǎn)品。對(duì)電流匯流排、金屬殼體等焊接質(zhì)量的檢查。對(duì)低阻標(biāo)準(zhǔn)器、直流分流器、功率型電阻器等的校驗(yàn)和調(diào)整。對(duì)開(kāi)關(guān)、電器、接觸電阻的測(cè)定。對(duì)各類(lèi)型電機(jī)、變壓器線組的直流電阻測(cè)量和電刷、開(kāi)關(guān)的接觸電阻以及作升溫試驗(yàn)等。<br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; background-color: rgb(255, 255, 255);"/><span style="font-size: 16px; box-sizing: border-box; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255); font-family: "Microsoft YaHei";"> 在雙臂電橋中，選擇相同的接線柱和導(dǎo)線，都比較容易，只要其影響相同，從理論上說(shuō)對(duì)被測(cè)電阻的影響不存在的，但在實(shí)際測(cè)量中，這種影響是不可避免存在的，但從測(cè)量的手段而言，可以忽略不計(jì)的，因此，對(duì)其精度要求</span><span style="font-size: 16px; color: rgb(0, 0, 0); box-sizing: border-box; background-color: rgb(255, 255, 255); font-family: "Microsoft YaHei";">高</span>的電阻測(cè)量，可以說(shuō)雙臂電橋能夠大大減小接線電阻和接觸電阻對(duì)測(cè)量結(jié)果的影響。因此，用直流雙臂電橋測(cè)量小電阻時(shí)，能得到較準(zhǔn)確的測(cè)量結(jié)果。功率越大的變壓器直流電阻相對(duì)越小。<br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; background-color: rgb(255, 255, 255);"/><span style="font-size: 16px; box-sizing: border-box; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255); font-family: "Microsoft YaHei";"> 直流雙臂電橋主要由電阻元件選用合金材料繞制而成，并經(jīng)長(zhǎng)期高低溫老練和嚴(yán)格工藝處理、調(diào)整，使電阻元件的溫度系數(shù)小，準(zhǔn)確度高和年穩(wěn)定性好；電橋采用方克精密儀用開(kāi)關(guān)，接觸電阻和變差??；采用 JZ2A改進(jìn)型指零儀，靈敏度高，噪音小、功耗低。具有測(cè)量范圍廣、可靠性高、體積小、重量輕、便于攜帶等特點(diǎn)。</span><br style="box-sizing: border-box; color: rgb(102, 102, 102); font-family: 微軟雅黑; background-color: rgb(255, 255, 255);"/><span style="font-size: 16px; box-sizing: border-box; color: rgb(102, 102, 102); background-color: rgb(255, 255, 255); font-family: "Microsoft YaHei";"> 以上就是<strong style="box-sizing: border-box;">上?？档?/strong>關(guān)于直流雙臂電橋的分享，希望能給大家提供到幫助，了解更多關(guān)于直流雙臂電橋的問(wèn)題歡迎</span><span style="font-size: 16px; color: rgb(0, 0, 0); box-sizing: border-box; background-color: rgb(255, 255, 255); font-family: "Microsoft YaHei";">咨詢</span>，如您需要，竭誠(chéng)為您服務(wù)。</span><br/></p></div> <div id="nxnzvbt5" class="inside_newsthree"> <p id="newsprev">上一篇：<b class="newsprev"><a href="/Article-3158225.html">BXZ 變頻串聯(lián)諧振耐壓試驗(yàn)裝置特點(diǎn)就算</a></b></p> <p id="newsnext">下一篇：<b class="newsnext"><a href="/Article-3154700.html">上?？档菐私庾儔罕入姌蚍?/a></b></p> <span><a href="/article.html">返回列表>></a></span> </div> </div> </div> </div> </div>    <div class="nxnzvbt5" id="z_Footer"> <div id="nxnzvbt5" class="pz_down"> <div id="nxnzvbt5" class="w_1200"> <div id="nxnzvbt5" class="footT"> <div id="nxnzvbt5" class="footAddr"> <div id="nxnzvbt5" class="footTit">上?？档请姎饪萍加邢薰?/div> <div id="nxnzvbt5" class="dAddr"><img class="ico" 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