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id="iqaqewgi6e" class="x-1"> <div id="iqaqewgi6e" class="b-1">產(chǎn)品特性<span>Product characteristics</span></div> <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> </tbody> </table> </section><p>ZC5990B揚(yáng)聲器 F0 測(cè)試儀</p><p>ZC5990B揚(yáng)聲器 F0 測(cè)試儀</p><p></p><table border="0" cellpadding="0" cellspacing="0" style="border-collapse:collapse; border-spacing:0px; color:rgb(67, 67, 67); font-family:microsoft yahei,arial; font-size:12px; line-height:18px; margin:0px; padding:0px; width:660px"><tbody><tr><td><span style="color:rgb(0, 117, 194)"><span style="font-size:16px"><strong>性能特點(diǎn)</strong></span></span></td><td><span style="color:rgb(0, 117, 194)"><span style="font-size:16px">　　　<strong>技術(shù)指標(biāo)</strong></span></span></td></tr><tr><td><ul><li>高準(zhǔn)確度，測(cè)試信號(hào)的頻率誤差≤0.01%</li><li>高精度，五次回掃時(shí)的測(cè)試誤差≤0.1%±1Hz(±1 個(gè)字)</li><li>測(cè)試頻率范圍寬，全頻段測(cè)試時(shí)為 20Hz~20kHz</li><li>試速度快，可直接顯示F0曲線</li><li>操作方便，顯示清晰</li><li>結(jié)構(gòu)精巧，方便攜帶</li></ul></td><td rowspan="6"><table align="right" border="1" cellpadding="2" cellspacing="1" style="border-collapse:collapse; border-spacing:0px; margin:0px; padding:0px; width:95%"><tbody><tr><td>型號(hào)</td><td style="text-align:center">ZC5990B</td></tr><tr><td>頻率范圍</td><td><p>20Hz ~ 20kHz</p></td></tr><tr><td>頻率準(zhǔn)確度</td><td><p>±0.01%</p></td></tr><tr><td>測(cè)量精度</td><td><p>0.1%±1Hz(±1 個(gè)字)<br /> </p></td></tr><tr><td>頻率穩(wěn)定性</td><td><p>優(yōu)于 100ppm</p></td></tr><tr><td>總諧波失真（THD+N）</td><td><p>≤0.5% (全頻段)</p></td></tr><tr><td>zui大輸出電壓</td><td><p>5Vrms</p></td></tr><tr><td>zui大測(cè)量電流</td><td style="text-align:center"> 400mA</td></tr><tr><td>工作電壓</td><td><p>~220V±10%/0.25A</p></td></tr><tr><td>工作環(huán)境溫度</td><td><p>5 ~ 40℃</p></td></tr></tbody></table></td></tr><tr><td><img alt="" src="http://www.zctek.com.cn/ckfinder/userfiles/images/2015051914000733.jpg" style="height:256px; width:300px" /></td></tr><tr><td><span style="color:rgb(0, 117, 194)"><span style="font-size:16px"><strong>簡(jiǎn)要介紹</strong></span></span></td></tr><tr><td> <p>是一款測(cè)試精度、準(zhǔn)確度和穩(wěn)定性都非常好的測(cè)試設(shè)備。在測(cè)試頻率范圍設(shè)置為 400Hz 時(shí)，分辨率可達(dá) 1Hz。測(cè)試頻率范圍越小，分辨率越高，非常有利于低頻揚(yáng)聲器（箱）的 F0 測(cè)試。采用了4.3寸彩色液晶顯示屏，可以直接顯示揚(yáng)聲器的F0曲線。</p></td></tr><tr><td><p> </p></td></tr></tbody></table> </div> <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="iqaqewgi6e" 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="iqaqewgi6e" class="msg_ipt1"><input class="textborder" size="30" name="Product" id="Product" value="ZC5990B揚(yáng)聲器 F0 測(cè)試儀" placeholder="請(qǐng)輸入產(chǎn)品名稱" /></div> </li> <li> <h4>您的單位：</h4> <div id="iqaqewgi6e" class="msg_ipt12"><input class="textborder" size="42" name="department" id="department" placeholder="請(qǐng)輸入您的單位名稱" /></div> </li> <li> <h4 class="xh">您的姓名：</h4> <div id="iqaqewgi6e" class="msg_ipt1"><input class="textborder" size="16" name="yourname" id="yourname" placeholder="請(qǐng)輸入您的姓名"/></div> 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