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SeoLength="30">QJ31直流單雙臂電橋</span></div> <div id="1571n5fppxr7" class="inpage_content"> <div class="1571n5fppxr7" id="nr_main_box"> <div class="1571n5fppxr7" id="pro_detail_box01"> <div class="1571n5fppxr7" id="pro_detail_text"> <h1>直流單雙臂電橋</h1> <div id="1571n5fppxr7" class="pro_ms"> <div id="1571n5fppxr7" class="bt">簡要描述：</div> <p>QJ31直流單雙臂電橋簡要說明：測量范圍： 0.1mΩ～1.1110ΜΩ 準(zhǔn)確度： 0.1%</p> </div> <p><strong>型號(hào)：</strong>QJ31</p> <p><strong>瀏覽量：</strong>1312</p> <p><strong>更新時(shí)間：</strong>2024-10-25</p> <p><strong>價(jià)格：</strong><a href="#order"><img src=/images/cankaojia.gif border=0></a></p> <a href="#tagContent1" class="gwc_an2 lightbox" style=" float:left;" rel="group1">在線留言</a> </div> <div class="1571n5fppxr7" id="preview"> <div id="1571n5fppxr7" class="jqzoom"><a target="_blank"><img id="bigImg" src="http://img54.chem17.com/gxhpic_c8334a7b44/73772409919cd492c93da3bd9d1230f342734f7bd1caaa064e0cf9fc9fcebf44fcb8cb997924e6d6.png" onload="AutoResizeImage(320,320,this)" jqimg="http://img54.chem17.com/gxhpic_c8334a7b44/73772409919cd492c93da3bd9d1230f342734f7bd1caaa064e0cf9fc9fcebf44fcb8cb997924e6d6.png" alt="直流單雙臂電橋"></a></div> </div> </div>  <div class="1571n5fppxr7" id="ny_pro_box02"> <div class="1571n5fppxr7" id="con"> <ul id="tags"> <li id="1571n5fppxr7" class="selectTag"><a onmouseover="selectTag('tagContent0',this)" href="javascript:void(0)" onfocus="this.blur()">詳細(xì)介紹</a></li> </ul> <div class="1571n5fppxr7" id="tagContent"> <div id="1571n5fppxr7" class="tagContent selectTag" id="tagContent0" style="display: block;"><link type="text/css" rel="stylesheet" href="/css/property.css"> <script> window.onload=function(){ changeTableHeight(); } window.onresize=function(){ changeTableHeight(); } function changeTableHeight(){ $(".proshowParameter table th").each(function?(i,o){ ????var $this=$(o),? ????height=$this.next().height(); ????$(this).css("height",height); var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); $(".proshowParameter table td").each(function?(i,o){ var obj = $(o); var val = obj.text(); if(val == '' || val == null || val == undefined){ $(this).addClass('none'); }else{ $(this).removeClass('none'); } }); } </script> <section class="proshowParameter"> <table style=" margin-bottom:20px;"> <tbody> <tr><th>品牌</th><td>其他品牌</td><th>產(chǎn)地類別</th><td>國產(chǎn)</td></tr> </tbody> </table> </section><p><span style="font-size:medium">QJ31型</span><strong style="font-size:medium">直流單雙臂電橋</strong><span style="font-size:medium">采用惠斯通/開爾文兩種電路，全量程由10個(gè)量程倍率和4個(gè)十進(jìn)讀數(shù)盤組成，有內(nèi)附指零儀和內(nèi)附工作電源。只要在電池盒內(nèi)裝入電池，不需要任何其它附件即可投入測量工作。適合大專院校和工礦企業(yè)實(shí)驗(yàn)室、車間現(xiàn)場或野外工地，對(duì)直流電阻作準(zhǔn)確的測量。測量方便。此外，電橋還設(shè)有外接電源接線端鈕。</span></p><p> <span style="font-size:medium">6、相對(duì)濕度在參考條件下，溫度超過參考溫度范圍，但在標(biāo)稱范圍之內(nèi)，由于溫度變化引起的附加誤差不應(yīng)超過相應(yīng)一個(gè)等級(jí)指數(shù)值。</span></p><p> </p><table border="1" cellpadding="0" cellspacing="0" style="border-collapse:collapse; border-spacing:0px; color:rgb(0, 0, 0); font-family:宋體,arial,sans-serif; font-size:12px; padding-left:0px; position:static; width:701px"><tbody><tr><td style="border-color: windowtext; width: 101pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">量程倍率</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">有效量程（Ω）</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">等級(jí)指數(shù)</span><span style="color:rgb(17, 17, 17); font-size:10pt">C%</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">×</span><span style="color:rgb(17, 17, 17); font-size:10pt">10</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">0.0001~0.1111</span></p></td><td rowspan="3" style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">0.1</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">×</span><span style="color:rgb(17, 17, 17); font-size:10pt">100</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">0.1~1.111</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">×</span><span style="color:rgb(17, 17, 17); font-size:10pt">1000</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">1~11.11</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">×</span><span style="color:rgb(17, 17, 17); font-size:10pt"><span style="font-size:9pt">10000</span></span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">10~111.1</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">0.2</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">×</span><span style="color:rgb(17, 17, 17); font-size:10pt">100000</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">100~1111</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17); font-size:10pt">0.5</span></p></td></tr></tbody></table><p><br /><span style="font-family:宋體,arial,sans-serif; font-size:12px"> </span><span style="font-family:宋體,arial,sans-serif">7、溫度在參考條件下，濕度超過參考相對(duì)濕度范圍，但在標(biāo)稱范圍之內(nèi)，由于濕度變化引起的附加誤差不應(yīng)超過相應(yīng)一個(gè)等級(jí)指數(shù)值的20%。</span></p><p> </p><p><span style="font-size:medium">8、線路與外殼之間的絕緣電阻（在環(huán)境溫度15~35℃，相對(duì)濕度45%~75%的條件下進(jìn)行）應(yīng)大于500MΩ。</span></p><p><span style="font-size:medium">9、線路與外殼之間能經(jīng)受500V一分鐘交流電壓試驗(yàn)，而不擊穿。</span></p><p><span style="font-size:medium">10、電橋外形尺寸：</span><span style="font-size:medium">320mm×</span><span style="font-size:medium">260mm×</span><span style="font-size:medium">160mm</span></p><p><span style="font-size:medium">11、重量：＜</span><span style="font-size:medium">5kg。</span></p><p><span style="font-size:medium">12、</span><strong><span style="font-size:14px">QJ31型直流單雙臂電橋</span></strong><span style="font-size:medium">工作電源：</span></p><p> </p><p><span style="font-size:medium">（1）電橋回路的工作電源為1號(hào)1.5V手電筒電池二節(jié)。</span></p><p><span style="font-size:medium">（2）集成運(yùn)放指零儀的工作電源為1節(jié)（</span><span style="font-size:medium">6F22）9V電池。</span></p><p> </p><p> </p><p>二、用途：<br />QJ31型<strong>直流單雙臂電橋</strong>的主要用途，用來測量10-4~1111000Ω的直流中、低電阻，金屬導(dǎo)體的電阻率，導(dǎo)線電阻，直流分流器電阻。開關(guān)、電器的接觸電阻及各類型電機(jī)、變壓器的繞線電阻和溫升試驗(yàn)等。</p><p>三、QJ31型<strong>直流單雙臂電橋</strong>主要技術(shù)性能：</p><p>1、電橋的總有效量程。</p><p>單臂電橋：10~1111000Ω</p><p>雙臂電橋；10-4~1111Ω</p><p>2、電橋的參考溫度為20±1℃，參考相對(duì)濕度為40%~60%。</p><p>3、電橋的標(biāo)稱使用溫度20±10℃，標(biāo)稱相對(duì)濕度為25%~80%。</p><p>4、QJ31型<strong>直流單雙臂電橋</strong>在參考溫度和相對(duì)濕度條件下，電橋各量程的允許誤差極限為：Elim=±C%（RN/10+X）………………（1）</p><p>式中： Elim——允許誤差極限，Ω；</p><p>X——標(biāo)度盤示值，Ω；</p><p>RN——基準(zhǔn)值，Ω（取該量程內(nèi)zui大的10的整數(shù)冪）；</p><p>C——準(zhǔn)確度等級(jí)。</p><p>5、電橋各量程、測量范圍、等級(jí)指數(shù)如表1、表2所示。</p><p>a、雙臂電橋<br /> </p><p> </p><p> </p><table border="1" cellpadding="0" cellspacing="0" style="border-collapse:collapse; border-spacing:0px; color:rgb(0, 0, 0); font-family:宋體,arial,sans-serif; font-size:12px; padding-left:0px; position:static; width:701px"><tbody><tr><td style="border-color: windowtext; width: 101pt;"><p><span style="color:rgb(17, 17, 17)">量程倍率</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17)">有效量程（Ω）</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17)">等級(jí)指數(shù)C%</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17)">×0.01</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17)">0.0001~0.1111</span></p></td><td rowspan="5" style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17)">0.1</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17)">×0.1</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17)">0.1~1.111</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17)">×1</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17)">1~11.11</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17)">×10</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17)">10~111.1</span></p></td></tr><tr><td style="width: 101pt;"><p><span style="color:rgb(17, 17, 17)">×100</span></p></td><td style="width: 101.05pt;"><p><span style="color:rgb(17, 17, 17)">100~1111</span></p></td></tr></tbody></table></div> <div id="1571n5fppxr7" class="tagContent" id="tagContent1" style="display: block;"><link rel="stylesheet" type="text/css" href="/css/MessageBoard_style.css"> <script language="javascript" src="/skins/Scripts/order.js?v=20210318" type="text/javascript"></script> <a name="order" id="order"></a> <div id="1571n5fppxr7" class="ly_msg" id="ly_msg"> <form method="post" name="form2" id="form2"> <h3>留言框 </h3> <ul> <li> <h4 class="xh">產(chǎn)品：</h4> <div id="1571n5fppxr7" class="msg_ipt1"><input class="textborder" size="30" name="Product" id="Product" value="直流單雙臂電橋" placeholder="請(qǐng)輸入產(chǎn)品名稱" /></div> </li> <li> <h4>您的單位：</h4> <div id="1571n5fppxr7" class="msg_ipt12"><input class="textborder" size="42" 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