中科微纳多功能粉末半导体电阻测试�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144641_874210_procont.jpg" style="" title="144641_874210_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144644_201412_procont.jpg" style="" title="144644_201412_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144703_200311_procont.jpg" style="" title="144703_200311_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144705_654440_procont.jpg" style="" title="144705_654440_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144708_701228_procont.jpg" style="" title="144708_701228_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144711_518424_procont.jpg" style="" title="144711_518424_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144714_536259_procont.jpg" style="" title="144714_536259_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144717_569597_procont.jpg" style="" title="144717_569597_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144720_931730_procont.jpg" style="" title="144720_931730_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144734_307678_procont.jpg" title="144734_307678_procont.jpg"/><br/></p><p><img src="//www.znpla.com/img1/img/daily/2023/12/07/144737_063913_procont.jpg" style="" title="144737_063913_procont.jpg"/></p><p><img src="//www.znpla.com/img1/img/daily/2024/06/25/141245_020687_procont.jpg" title="141245_020687_procont.jpg" alt="粉体�?jpg"/></p><p>一�?nbsp;测量范围９�/p><p>测量半导电电阻率时： 电阻�?0-6�?05Ω-cm；分辩率10-6Ω-cm</p><p> 测量其他（电线电缆）电阻时： 电阻10-4--2X105Ω，分辨率1uΩ</p><p>二�?nbsp;电压测量９�/p><p>1�?nbsp; 量程 2 mV�?0 mV�?00 mV�?V</p><p>2�?nbsp; 测量误差 2mA档�?0.5%读数+8�?�?0mV�?V挡�?0.5%读数+2�?</p><p>3�?nbsp; 显示4 1/2 位数字显�?�?9999具有极性和过载自动显示，小数点、单位自动显示、�/p><p>三�?nbsp;恒流源：</p><p>1�?nbsp; 电流输出�?nbsp;10μA�?00μA�?mA�?0mA�?00mA�?.5A�?A�?0A</p><p>2. 电流误差：�?0.5%读数+2�?</p><p>四�?nbsp;数据打印９�/p><p>可对测试结果进行打印，显示结果为：体积电阻率、电阻倻�/p><p>五、测量电极：</p><p>1、电极材质：铛�/p><p>2、测量距离：10MM</p><p>六、粉末套筒：</p><p>1、内径：16mm</p><p>2、行程：50 mm </p><p><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体"></span></span></p><p><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">在较低温度时，选择温度间隔小，例如</span><span style="font-family:Calibri">10C,</span><span style="font-family:宋体">随着试验温度的升高，温度间隔适当增大，注：电阻和温度的关系以电阻（电阻率）的对数与温度的倒数的关系表示。由于介电吸收问题，在规定的测量时间里电流不能达到稳定时，就需要测出电阻与时间的函数关系，从而估算出稳态下的电阻值、�/span><span style="font-family:Calibri">2</span><span style="font-family:宋体">）调节加热室的温度应使电极底板的温度不超过所要求的试验温度、�/span></span></p><p><span style=";font-family:宋体;font-size:14px"><span style="font-family:宋体">当被试材料的电阻相对低时，需要降低电压进行测量，避免试样的发热效应。对于那些有极化效应的试样，由于电荷集中在一个或两个电极上，其试验结果易出现误差。除非对热降解影响有特殊要求外，试样在试验温度下应保持足够长的时间以达到热平衡。按试验所要求的时间间隔或更长时间间隔，用另一个试样定时地测量其电阻值（</span><span style="font-family:Calibri">1min</span><span style="font-family:宋体">电化时间），再比较这些测量值，从而决定暴露于试验温度下的大允许时间。在一系列逐级升温下试验后，还要在起始温度上再进行测量，以便观察试样暴露在高温下是否产�?*性变化。取测得的电阺�/span><span style="font-family:Calibri">R</span><span style="font-family:宋体">值作为绝缘电阻，</span><span style="font-family:Calibri">Rv</span><span style="font-family:宋体">——体积电阻，单位为欧姆（</span><span style="font-family:Calibri">Q</span><span style="font-family:宋体">）；</span><span style="font-family:Calibri">A</span><span style="font-family:宋体">——测量电极的有效面积＋�/span><span style="font-family:Calibri">h</span><span style="font-family:宋体">—试样在面积</span><span style="font-family:Calibri">A</span><span style="font-family:宋体">以内的平均厚度，</span><span style="font-family:Calibri">c</span><span style="font-family:宋体">）电极型式、材料、尺寸；</span></span></p><p><span style=";font-family:宋体;font-size:14px"><span style="font-family:Calibri">d</span><span style="font-family:宋体">）电阻的测量方法：�/span><span style="font-family:Calibri">e</span><span style="font-family:宋体">）试验电压和电化时间：�/span><span style="font-family:Calibri">g</span><span style="font-family:宋体">）测量时的温度；</span><span style="font-family:Calibri">h</span><span style="font-family:宋体">）每一温度下的个别值；</span><span style="font-family:Calibri">i</span><span style="font-family:宋体">）体积电阻率、�/span><span style="font-family:Calibri">1</span><span style="font-family:宋体">—温度指示仪：�/span><span style="font-family:Calibri">2-</span><span style="font-family:宋体">热电偶；</span><span style="font-family:Calibri">4</span><span style="font-family:宋体">—电极板：�/span><span style="font-family:Calibri">5--</span><span style="font-family:宋体">金属屏蔽罩；</span><span style="font-family:Calibri">6</span><span style="font-family:宋体">—电源；</span><span style="font-family:Calibri">8</span><span style="font-family:宋体">烘箱臂。试验仪器的额定直流开路电压为</span><span style="font-family:Calibri">500V,</span><span style="font-family:宋体">好采用绝缘测试仪（欧姆表）或用任何一种可给岀可比结果的合适仪器进行测试。试验仪器的测定电阻误差应小亍�/span><span style="font-family:Calibri">10%,</span><span style="font-family:宋体">在被试产品上消耗的功率不大亍�/span><span style="font-family:Calibri">3W</span><span style="font-family:宋体">。在测量较高电阻旵�/span><span style="font-family:Calibri">,</span><span style="font-family:宋体">施加于被试产品上的电压太低可能产生较大误差。在有争议情况下，其电压可不低于</span><span style="font-family:Calibri">40V,</span><span style="font-family:宋体">但不得违反在被试产品上消耗功率不大于</span><span style="font-family:Calibri">3W</span><span style="font-family:宋体">的要求。除鞋类试验的电极系统外</span><span style="font-family:Calibri">,</span><span style="font-family:宋体">一般通过导电银涂料、胶体石墨或导电液在测试物表面上形成电极（被测产品电阻在</span><span style="font-family:Calibri">iog</span><span style="font-family:宋体">及以下时、�/span></span></p><p><br/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 可对测试结果进行打印，显示结果为：体积电阻率、电阻� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div class="xgfa_cont"><a href="//www.znpla.com/huayan2021/solution_333.html" target="_blank" class="xgfa_cont_img"><img src="//www.znpla.com/img1/img/daily/2021/11/22/140453_790664_solution_25872.jpg"/></a> <div class="xgfa_cont_rig"><a href="//www.znpla.com/huayan2021/solution_333.html" target="_blank">体积电阻率和表面电阻率有什么不吋�/a> <p class="xgfa_cont_txt">首先*步需要测试体积电阻值和表面电阻值，然后根据试样的尺寸和电极系数，根据计算公式得到体积电阻率和表面电阻率，体积和表面电阻测试时，对电压试样的位置不同，从而能够不同的电阻值在接和未接试样时电容的变化</p><div class="xgfa_cont_time"> <span>石油/化工</span><p>2021-11-22</p></div></div></div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = $(this).index(); 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