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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><span>美国Polyk Technologies公司研发了高电场下的频谱介电测量系统，更好的解决了非线性介电响应问题、�/span></p><p><strong></strong></p><p><strong><span>非线性介电响应：</span></strong><span> -当通过LCR Meter或者分析仪（Agilent/Keysight 4284A� E4980A�?294A）测量介电常数时，加载电压通常1V左右；然而，很多压电陶瓷（PZT）和高分子（PVDF）对于加载的电场具有非线性响应；通常它们的介电常数和损耗因子在高压下变得更低、�/p><p> -在很多应用中，例如电容器和驱动器，介电层>10V/um或�?00V/um的高电场下工作，它们的有效介电常数和损耗tan��是非常不用于普通LCR Meter和阻抗分析仪的测量值@1Vrms、�/p><p> -在介电测试过程中直接加载一个高压信号，如果样品突然发生介电击穿，这对于昂贵的LCR Meter有很大的损坏风险、�/span></p><p><span>因此美国Polyk Technologies公司研发了此款宽频谱介电测量系统，有效的避免了上述问题的发生、�/span></p><p><strong><span>技术规格：</span></strong><span>1�?*电压�?#177;4000V：�/p><p>2�?*电流�?#177;20mA：�/p><p>3）频率范围：100Hz to 1MHz：�/p><p>4）电容范围：100pF to 100nF：�/p><p>5）温度范围：-184� to 250℃；</span></p><p><span>6）温度控制腔室：-75� to 200℃；（可选）</span></p><p><span>7）温度控制腔室：室温 to 1000℃；（可选）</p><p>8）宽频范围：20 Hz to 1 MHz or 110 MHz� or 0.01 Hz to 1 MHz(与配备的阻抗分析仪相�?;（可选）</p><p>9）Large AC信号单元；（可选）</span></p><p><span>欢迎垂询�?/span></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;"> 暂无数据� </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 style="padding:10px;">暂无相关方案、�/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(); $(".xgfa_box").css("display","none"); $(".xgfa_box").eq(_index).css("display","block"); }); }); </script>  <div class="xgzl"> <div class="cxd_tit"><span></span>相关资料</div> <div class="xgzl_box"><div style="padding:10px;">暂无数据、�/div> </div> </div>  <div class="yhpl"> <div class="cxd_tit"><span></span>用户评论</div> <form id="FormComments" action="" method="post" onsubmit="return false"> <input name="SaveProComments" id="SaveProComments" type="hidden" value="yes" /> <input name="ProductID" id="ProductID" type="hidden" value="253653" /> <input name="ProQuality" id="ProQuality" type="hidden" value="10" /> <input name="ProService" id="ProService" type="hidden" value="10" /> <input name="ProUsability" id="ProUsability" type="hidden" value="10" /> <input name="ProCostperformance" id="ProCostperformance" type="hidden" value="10" /> <div class="yhpl_pf"> <div> <p>产品质量</p> <div><span id="Quality" class="stars star10"></span><span id="Quality_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>售后服务</p> <div><span id="Service" class="stars star10"></span><span id="Service_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>易用�?/p> <div><span id="Usability" class="stars star10"></span><span id="Usability_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>性价毓�/p> <div><span id="Costperformance" class="stars star10"></span><span id="Costperformance_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> </div> <div class="yhpl_pftit">评论内容</div> <textarea name="Comments" id="ProComments" onfocus="checklogin();" placeholder="分享产品使用经验/采购评价（不超过500字）">