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</ul> <li><a href="/ParentList-1408385.html" title="同高電子" onmouseover="showsubmenu('同高電子')" class="on">同高電子</a></li> <ul> <div class="sh7gbfdki" id="submenu_同高電子" style="display:none"> <li id="sh7gbfdki" class="left_nav_xl"><a href="/SonList-1408386.html" title="壓敏電阻測試儀">壓敏電阻測試儀</a></li> </div> </ul> </ul> </div> <div id="sh7gbfdki" class="page-right"> <div id="sh7gbfdki" class="onurl"> <a href="/"><img src="/Skins/333987/images/home.png"></a><a href="/">網(wǎng)站首頁</a>><a href="/article.html">技術(shù)文章</a> > QJ57直流雙臂電橋用途與技術(shù)參數(shù)</div> <div id="sh7gbfdki" class="page-news"> <div id="sh7gbfdki" class="newshowheader"> <h1 class="nd_title">QJ57直流雙臂電橋用途與技術(shù)參數(shù)</h1> <div id="sh7gbfdki" class="article-info"> <span> 瀏覽：</span> 1352<span id="sh7gbfdki" class="split">|</span> <span id="publishtime">更新時間：2022-11-30</span> <span id="sh7gbfdki" class="split">|</span> </div> </div> <div id="sh7gbfdki" class="page-newshow"> <p><span style="font-size: 16px;"><strong>QJ57直流雙臂電橋用途與技術(shù)參數(shù)</strong></span><br/></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">QJ57<span style="font-family:宋體;box-sizing: border-box;">型直流電阻電橋具有五個十進式測量讀數(shù)盤，全量程由七個分量限組成，并內(nèi)附電源與指零儀，故不需任何其他附件即可投入測量工作，適合實驗室、車間生產(chǎn)線或野外工地，高精度測量直流中值和低值電阻，體積小巧，使用簡便。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">為配合不同用途的測量需要，電橋的電源和指零儀的斷通按鍵是獨立存在的，以能控制測量線路的閉合次序，同時電橋線路的特點使在測定低值有感電阻時，由雜散磁場變化帶來的干擾影響相對降低。<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p17" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">為配合外接高靈敏指零儀及大容量電源的需要，電橋備有外接指零儀接線端鈕與外接電源接線端鈕，并可通過選擇開關(guān)作選用。<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">面板上還各有可連接大指示面的中心零位表頭，同時斷開內(nèi)接指示表頭的專用插座，如外接指示表頭選擇適當，靈敏度還可以提高。（此時，儀器內(nèi)附放大器及調(diào)整鈕仍起作用）<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">內(nèi)附電池電壓可隨時通過面板上的表頭來檢查荷電狀況，以能及時發(fā)覺耗完的電池進行更換。<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 21pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">二、<strong style="font-size: 16px; white-space: normal;">QJ57直流雙臂電橋 </strong>用途<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">本儀器的主要用途如下：<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">1<span style="font-family:宋體;box-sizing: border-box;">、對金屬桿棒、板料或電纜、導(dǎo)線等電阻率測定。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">2<span style="font-family:宋體;box-sizing: border-box;">、對流匯流排、金屬殼體等焊接質(zhì)量的檢查。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">3<span style="font-family:宋體;box-sizing: border-box;">、對低阻標準器、大電流分流器、功率型電阻器等的校驗和調(diào)整。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">4<span style="font-family:宋體;box-sizing: border-box;">、開關(guān)、電器接觸電阻的測定。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">5<span style="font-family:宋體;box-sizing: border-box;">、各型電機、變壓器、繞阻的直流電阻測量和溫升試驗等等。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">三、電橋外形及部件名稱：<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">1<span style="font-family:宋體;box-sizing: border-box;">、指零儀的電氣調(diào)零鈕。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">2<span style="font-family:宋體;box-sizing: border-box;">、指零儀的靈敏度調(diào)節(jié)鈕。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">3<span style="font-family:宋體;box-sizing: border-box;">、接地端鈕。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">4<span style="font-family:宋體;box-sizing: border-box;">、內(nèi)附指零儀表頭。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">5<span style="font-family:宋體;box-sizing: border-box;">、連接大指示面指零儀的專用插座。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">6<span style="font-family:宋體;box-sizing: border-box;">、指零儀內(nèi)接與外接選擇開關(guān)。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">7<span style="font-family:宋體;box-sizing: border-box;">、外接指零儀端鈕。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">8<span style="font-family:宋體;box-sizing: border-box;">、外接電源的端鈕。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">9<span style="font-family:宋體;box-sizing: border-box;">、電源內(nèi)接與外接選擇開關(guān)。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">10<span style="font-family:宋體;box-sizing: border-box;">、測量讀數(shù)盤。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">11<span style="font-family:宋體;box-sizing: border-box;">、指零儀按鍵。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">12<span style="font-family:宋體;box-sizing: border-box;">、電源按鍵。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">13<span style="font-family:宋體;box-sizing: border-box;">、倍率盤。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">14<span style="font-family:宋體;box-sizing: border-box;">、四端鈕測量接線柱。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">15<span style="font-family:宋體;box-sizing: border-box;">、內(nèi)接指零儀電源（</span><span style="font-family:Times New Roman;box-sizing: border-box;">9V</span><span style="font-family:宋體;box-sizing: border-box;">）</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">16<span style="font-family:宋體;box-sizing: border-box;">、內(nèi)接電橋工作電源（</span><span style="font-family:Times New Roman;box-sizing: border-box;">1.5V8</span><span style="font-family:宋體;box-sizing: border-box;">節(jié)并聯(lián)）。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;"><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;"> <img alt="" width="234" height="183" src="https://img68.chem17.com/9/20221130/638054089966270309315.png" style="box-sizing: border-box; vertical-align: middle; border: 0px; max-width: 100%; height: auto;"/><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); text-indent: 52.5pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">圖<span style="font-family:Times New Roman;box-sizing: border-box;">1-a QJ57</span><span style="font-family:宋體;box-sizing: border-box;">型電橋的面板及部件</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); text-indent: 24pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;"> <img alt="" width="233" height="183" src="https://img68.chem17.com/9/20221130/638054089967833152307.png" style="box-sizing: border-box; vertical-align: middle; border: 0px; max-width: 100%; height: auto;"/><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); text-indent: 73.5pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">圖<span style="font-family:Times New Roman;box-sizing: border-box;">1-b QJ57</span><span style="font-family:宋體;box-sizing: border-box;">型電橋背面</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); text-indent: 73.5pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;"><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">四、<strong style="font-size: 16px; white-space: normal;">QJ57直流雙臂電橋</strong><span style=""> 主要技術(shù)特性</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">1<span style="font-family:宋體;box-sizing: border-box;">、測量讀數(shù)范圍：</span><span style="font-family:Times New Roman;box-sizing: border-box;">0.01</span><span style="font-family:宋體;box-sizing: border-box;">μΩ</span><span style="font-family:Times New Roman;box-sizing: border-box;">~1111.10</span><span style="font-family:宋體;box-sizing: border-box;">Ω分</span><span style="font-family:Times New Roman;box-sizing: border-box;">7</span><span style="font-family:宋體;box-sizing: border-box;">個量程給出。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">2<span style="font-family:宋體;box-sizing: border-box;">、電橋不同量限的等級指數(shù)列于表</span><span style="font-family:Times New Roman;box-sizing: border-box;">1</span><span style="font-family:宋體;box-sizing: border-box;">：</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 150.045pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">表<span style="font-family:Times New Roman;box-sizing: border-box;">1</span><o:p style="box-sizing: border-box;"></o:p></span></p><div id="sh7gbfdki" class="tabledivclass" style="width: 99%; float: left;"><table style="box-sizing: border-box; border-spacing: 0px; background-color: rgb(255, 255, 255); table-layout: inherit; font-family: "Microsoft YaHei", Arial, sans-serif; padding: 0pt 5.4pt; margin-left: 36.9pt; max-width: 748px;" align="left"><tbody style="box-sizing: border-box;"><tr style="box-sizing: border-box;" class="firstRow"><td valign="top" width="82" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: 0.5pt; border-style: solid; border-color: rgb(0, 0, 0); width: 61.8pt;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; position: relative; letter-spacing: 1.1pt; top: 13pt;">量程因數(shù)<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="124" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: 0.5pt 0.5pt 0.5pt medium; border-style: solid solid solid none; border-top-color: rgb(0, 0, 0); border-right-color: rgb(0, 0, 0); width: 93.3pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; position: relative; letter-spacing: 1.1pt; top: 13pt;">有效量程（Ω）<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="110" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: 0.5pt 0.5pt 0.5pt medium; border-style: solid solid solid none; border-top-color: rgb(0, 0, 0); border-right-color: rgb(0, 0, 0); width: 82.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">用百分比表示<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">的等級指數(shù)<span style="font-family:Times New Roman;box-sizing: border-box;">C</span><o:p style="box-sizing: border-box;"></o:p></span></p></td></tr><tr style="box-sizing: border-box;"><td valign="top" width="82" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt; border-style: none solid solid; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 61.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: rgb(0, 0, 0);"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">10</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">3</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;"><o:p style="box-sizing: border-box;"></o:p></span></span></p></td><td valign="top" width="124" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 93.3pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0~1111.10<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="110" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 82.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0.05<o:p style="box-sizing: border-box;"></o:p></span></p></td></tr><tr style="box-sizing: border-box;"><td valign="top" width="82" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt; border-style: none solid solid; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 61.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: rgb(0, 0, 0);"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">10</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">2</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;"><o:p style="box-sizing: border-box;"></o:p></span></span></p></td><td valign="top" width="124" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 93.3pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0~111.110<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="110" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 82.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0.05<o:p style="box-sizing: border-box;"></o:p></span></p></td></tr><tr style="box-sizing: border-box;"><td valign="top" width="82" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt; border-style: none solid solid; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 61.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: rgb(0, 0, 0);"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">10<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="124" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 93.3pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0~11.1110<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="110" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 82.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0.05<o:p style="box-sizing: border-box;"></o:p></span></p></td></tr><tr style="box-sizing: border-box;"><td valign="top" width="82" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt; border-style: none solid solid; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 61.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: rgb(0, 0, 0);"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">1<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="124" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 93.3pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0~1.11110<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="110" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 82.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0.05<o:p style="box-sizing: border-box;"></o:p></span></p></td></tr><tr style="box-sizing: border-box;"><td valign="top" width="82" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt; border-style: none solid solid; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 61.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: rgb(0, 0, 0);"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">10</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">-1</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;"><o:p style="box-sizing: border-box;"></o:p></span></span></p></td><td valign="top" width="124" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 93.3pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0~0.111110<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="110" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 82.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0.05<o:p style="box-sizing: border-box;"></o:p></span></p></td></tr><tr style="box-sizing: border-box;"><td valign="top" width="82" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt; border-style: none solid solid; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 61.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: rgb(0, 0, 0);"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">10</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">-2</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;"><o:p style="box-sizing: border-box;"></o:p></span></span></p></td><td valign="top" width="124" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 93.3pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0~0.0111110<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="110" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 82.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0.2<o:p style="box-sizing: border-box;"></o:p></span></p></td></tr><tr style="box-sizing: border-box;"><td valign="top" width="82" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt; border-style: none solid solid; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 61.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: rgb(0, 0, 0);"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">10</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">-3</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;"><o:p style="box-sizing: border-box;"></o:p></span></span></p></td><td valign="top" width="124" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 93.3pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">0~0.00111110<o:p style="box-sizing: border-box;"></o:p></span></p></td><td valign="top" width="110" style="box-sizing: border-box; padding: 0pt 5.4pt; border-width: medium 0.5pt 0.5pt medium; border-style: none solid solid none; border-top-color: initial; border-right-color: rgb(0, 0, 0); width: 82.8pt; border-bottom-color: rgb(0, 0, 0); border-left-color: initial;"><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; text-align: center;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">2<o:p style="box-sizing: border-box;"></o:p></span></p></td></tr></tbody></table></div><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 21pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">3<span style="font-family:宋體;box-sizing: border-box;">、電橋基本誤差的允許極限由下式?jīng)Q定：</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;"> Elim=<span style="font-family:宋體;box-sizing: border-box;">±</span><span style="font-family:Times New Roman;box-sizing: border-box;">C/100R</span></span><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: sub;">N</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">/10+X<o:p style="box-sizing: border-box;"></o:p></span></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">式中：<span style="font-family:Times New Roman;box-sizing: border-box;">Elim</span><span style="font-family:宋體;box-sizing: border-box;">—允許的誤差極限 Ω</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;"> R</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: sub;">N</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">—基準值 Ω<o:p style="box-sizing: border-box;"></o:p></span></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;"> X<span style="font-family:宋體;box-sizing: border-box;">—標度盤示值 Ω</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;"> C<span style="font-family:宋體;box-sizing: border-box;">—等級指數(shù)</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">注：由于分辨力不足而引起的任何誤差應(yīng)包括在允許誤差內(nèi)。<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">4<span style="font-family:宋體;box-sizing: border-box;">、電橋保證準確度的參考溫度為</span><span style="font-family:Times New Roman;box-sizing: border-box;">20</span><span style="font-family:宋體;box-sizing: border-box;">±</span><span style="font-family:Times New Roman;box-sizing: border-box;">0.5</span></span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">℃、參考相對濕度<span style="font-family:Times New Roman;box-sizing: border-box;">40%~60%</span><span style="font-family:宋體;box-sizing: border-box;">。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">5<span style="font-family:宋體;box-sizing: border-box;">、電橋的標稱使用溫度范圍內(nèi)為</span><span style="font-family:Times New Roman;box-sizing: border-box;">15</span><span style="font-family:宋體;box-sizing: border-box;">℃</span><span style="font-family:Times New Roman;box-sizing: border-box;">~25</span><span style="font-family:宋體;box-sizing: border-box;">℃、標稱使用相對濕度</span><span style="font-family:Times New Roman;box-sizing: border-box;">25~75%</span><span style="font-family:宋體;box-sizing: border-box;">。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">6<span style="font-family:宋體;box-sizing: border-box;">、測量讀數(shù)盤：</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">電橋測量線路。主要包括兩個固定橋臂和兩個可調(diào)橋臂組成雙電橋的內(nèi)外比例臂。而二個可調(diào)臂，在調(diào)整時是機械聯(lián)動的，同時在面板上顯示讀數(shù)。<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">可調(diào)臂中五個測量盤的步進值相當于<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">10(0.1+0.01+0.001+0.0001+0.00001)<span style="font-family:宋體;box-sizing: border-box;">Ω</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">給出的*大值為<span style="font-family:Times New Roman;box-sizing: border-box;">1.1111</span><span style="font-family:宋體;box-sizing: border-box;">Ω，*小步進值為</span><span style="font-family:Times New Roman;box-sizing: border-box;">0.00001</span><span style="font-family:宋體;box-sizing: border-box;">Ω。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">7<span style="font-family:宋體;box-sizing: border-box;">、倍率盤：是一個十一位旋轉(zhuǎn)開關(guān)，可選擇以下功能。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">A<span style="font-family:宋體;box-sizing: border-box;">、“斷"位——在該位置上，指零儀輸入端短路，放大器的工作電源切斷。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.045pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">B<span style="font-family:宋體;box-sizing: border-box;">、量程因數(shù)：“</span><span style="font-family:Times New Roman;box-sizing: border-box;">10</span></span><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">3</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">"、“<span style="font-family:Times New Roman;box-sizing: border-box;">10</span></span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">2</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">"、“<span style="font-family:Times New Roman;box-sizing: border-box;">10</span><span style="font-family:宋體;box-sizing: border-box;">"、“</span><span style="font-family:Times New Roman;box-sizing: border-box;">1</span><span style="font-family:宋體;box-sizing: border-box;">"、“</span><span style="font-family:Times New Roman;box-sizing: border-box;">10</span></span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">-1</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">"、“<span style="font-family:Times New Roman;box-sizing: border-box;">10</span></span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">-2</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">"、“<span style="font-family:Times New Roman;box-sizing: border-box;">10</span></span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: super;">-3</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">"<o:p style="box-sizing: border-box;"></o:p></span></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.045pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">在任一量程因數(shù)下，內(nèi)附指零儀放大器工作電源接通，相應(yīng)于該量限的限流電阻自動接入線路。<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">C<span style="font-family:宋體;box-sizing: border-box;">、“</span><span style="font-family:Times New Roman;box-sizing: border-box;">B</span></span><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: sub;">V</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">"位——此時，可在指示表上直接檢查內(nèi)附電橋工作電源的荷電狀況，檢查時按下“<span style="font-family:Times New Roman;box-sizing: border-box;">B</span><span style="font-family:宋體;box-sizing: border-box;">"鈕，如表針偏不到綠色刻度，則表明需要換</span><span style="font-family:Times New Roman;box-sizing: border-box;">1.5V</span><span style="font-family:宋體;box-sizing: border-box;">電池。</span><o:p style="box-sizing: border-box;"></o:p></span></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">D<span style="font-family:宋體;box-sizing: border-box;">、“</span><span style="font-family:Times New Roman;box-sizing: border-box;">G</span></span><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體; vertical-align: sub;">V</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">"位——在此位置上，表針如偏轉(zhuǎn)不到綠色刻度，則需要更換<span style="font-family:Times New Roman;box-sizing: border-box;">9V</span><span style="font-family:宋體;box-sizing: border-box;">電池（與指零儀按鍵狀態(tài)無關(guān)）。</span><o:p style="box-sizing: border-box;"></o:p></span></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">8<span style="font-family:宋體;box-sizing: border-box;">、內(nèi)附指零儀：指零儀包括一個中心零位的指示表頭，一個調(diào)制型放大器，以及一個調(diào)零電位器和一個調(diào)節(jié)靈敏度的電位器。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">(a)<span style="font-family:宋體;box-sizing: border-box;">靈敏度——在電橋規(guī)定的供電電壓及有效量程內(nèi)，當橋臂電阻（或被測電阻）變化</span><span style="font-family:Times New Roman;box-sizing: border-box;">C%</span><span style="font-family:宋體;box-sizing: border-box;">時，指示儀表的相應(yīng)偏轉(zhuǎn)大于一個毫米分格值。若達不到要求時，則應(yīng)有外接指零儀端鈕。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">(b)<span style="font-family:宋體;box-sizing: border-box;">調(diào)零——指示表頭上備有機械調(diào)零裝置，在測量工作進行之前，可預(yù)先調(diào)整零位，而當放大電源接通后，若表針偏向一邊，可用調(diào)零電位器調(diào)整至中央，調(diào)整范圍大于</span></span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">±200mm<span style="font-family:宋體;box-sizing: border-box;">分格。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">作精密測量時，如有需要，可當電橋接近*終平衡時，把電源開關(guān)斷開，再一次調(diào)整電氣零位后測量，以扣除測量線路內(nèi)寄生熱電勢。<o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">(a)<span style="font-family:宋體;box-sizing: border-box;">阻尼時間 —— </span></span><span style="font-size: 16px;"><span style="box-sizing: border-box; font-size: 9pt; font-family: 宋體;">＜</span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">4s<span style="font-family:宋體;box-sizing: border-box;">。</span><o:p style="box-sizing: border-box;"></o:p></span></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">(b)<span style="font-family:宋體;box-sizing: border-box;">放大器輸入阻抗—— 約</span><span style="font-family:Times New Roman;box-sizing: border-box;">5K</span><span style="font-family:宋體;box-sizing: border-box;">Ω。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">(c)<span style="font-family:宋體;box-sizing: border-box;">靈敏度——</span><span style="font-family:Times New Roman;box-sizing: border-box;">1.2mm/1</span></span><span style="box-sizing: border-box; font-size: 10.5pt; font-family: 宋體;">μV<span style="font-family:宋體;box-sizing: border-box;">。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">(f)<span style="font-family:宋體;box-sizing: border-box;">表頭內(nèi)阻——約</span><span style="font-family:Times New Roman;box-sizing: border-box;">4K</span><span style="font-family:宋體;box-sizing: border-box;">Ω。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">9<span style="font-family:宋體;box-sizing: border-box;">、外形尺寸：</span><span style="font-family:Times New Roman;box-sizing: border-box;">300mm</span><span style="font-family:宋體;box-sizing: border-box;">×</span><span style="font-family:Times New Roman;box-sizing: border-box;">250mm</span><span style="font-family:宋體;box-sizing: border-box;">×</span><span style="font-family:Times New Roman;box-sizing: border-box;">160mm</span><span style="font-family:宋體;box-sizing: border-box;">。</span><o:p style="box-sizing: border-box;"></o:p></span></p><p class="p0" style="box-sizing: border-box; margin-top: 0pt; margin-bottom: 0pt; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Arial, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255); line-height: 14pt; text-indent: 24.1pt;"><span style="box-sizing: border-box; font-family: 宋體; font-size: 16px;">10<span style="font-family:宋體;box-sizing: border-box;">、重量：約</span><span 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