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} }); function showliuyan(me, showtype){ if(showtype==0){ //$("#Content").val($("#Content").attr('placeholder')); Content= document.getElementById('PopMsgFrom').Content.getAttribute('placeholder'); document.getElementById('PopMsgFrom').Content.value=Content; } if(showtype==1){ // $("#Content").val($(me).text()); alert($(me).text()); document.getElementById('PopMsgFrom').Content.value=$(me).text(); } $(".fxp").css("display","flex"); } function close_popwin(){ $(".fxp").css("display","none"); // 关闭虚拟电话后的留言� $(".dhxj").css("display","none"); $(".dhxjbox").css("display", "none"); $(".dhxjbox2").css("display", "none"); return false; } </script>  <div class="cpjs"> <div class="cpjs_tab"> <div class="js_cpjj" style="border-bottom: 3px solid #1479d7; color: #1479d7;">产品介绍</div> <div class="js_cxd">创新炸�/div> <div class="js_xgfa">相关方案</div> <div class="js_xgzl">相关资料</div> <div class="js_yhpl">用户评论</div> <div class="js_gsdt">公司动�?/div> <div class="js_wsj">问商宵�/div> </div> <script> $(function(){ // 切换 $(".cpjs_tab a").click(function(){ $(".cpjs_tab a").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p style="white-space: normal; text-indent: 83px;"><strong><span style="font-family: 宋体; font-size: 24px;">JK-b2000动态色谱法比表面积测试�?/span></strong></p><p style="white-space: normal;"><strong><span style="font-family: 宋体; color: rgb(227, 108, 10); font-size: 19px;">JK-b2000动态色谱法比表面积测试仪简今�/span></strong></p><p style="white-space: normal;"><span style="font-family: 宋体;">JK-b2000是国内优秀的快速BET比表面积测试�?同时可以�?个样品进行分�?可以按照客户需要减少一组传感器，配置成可以同时对两个样品进行分�?。（采用双传感器，同一杯液氮可以同时分析两个样品，国内同类仪器测试速度快、精度稳定）、�/span></p><p style="white-space: normal;"><strong><span style="font-family: 仿宋; font-size: 14px;"> </span></strong></p><p style="white-space: normal;"><strong><span style="font-family: 宋体; color: rgb(227, 108, 10);">1.仪器原理</span></strong></p><p style="white-space: normal;"><span style="font-family: 宋体;">JK-b2000利用气相色谱原理，载气和被吸附气体按照一定比例通过TCD的参考臂和测量臂，在参考臂和测量臂之间接入样品管并装有测试样品，当样品管浸入液氮之中，样品发生吸附现象，TCD参考臂和测量臂气体浓度失去平衡，TCD输出电压信号，通过电桥采集，放大器放大，采集卡AD转换，通过通讯接口输入电脑，由专业分析软件进行数据分析、图谱绘制、自动保存、数据打印、�/span></p><p style="white-space: normal;"><strong><span style="font-family: 宋体; color: rgb(255, 102, 0);"></span></strong><strong><span style="font-family: 宋体; color: rgb(255, 102, 0);">2.测试方法:</span></strong><br/></p><p style="white-space: normal;"><span style="font-family: 宋体;">利用液氮温度下样品吸附气体，出现一个峰值，然后常温或加热时，脱附出一个峰值，与软件内保存标准峰值进行对比，得出比表面积、�/span></p><p style="white-space: normal;"><span style="font-family: 宋体;">�?）气路系绞�/span></p><p style="white-space: normal;"><span style="font-family: 宋体;">气路系统包括由稳压和稳流阀、TCD检测器、样品管、管路和电磁阀构成、�/span></p><p style="white-space: normal; text-indent: 8px;"><span style="font-family: 宋体;">(2) 电路系统</span></p><p style="white-space: normal;"><span style="font-family: 宋体;">电路系统包括由运算放大器、温度控制、稳压电源、恒流电源，采集卡等构成、�/span></p><p style="white-space: normal;"><sub><span style="font-family: 宋体; font-size: 16px; position: relative; top: 7px; vertical-align: sub;"> </span></sub></p><p style="white-space: normal;"><strong><span style="font-family: 宋体; color: rgb(227, 108, 10);">3.仪器主要技术参数及特点９�/span></strong></p><p style="margin-left: 24px; white-space: normal;"><span style="font-family: 宋体;">1) </span><span style="font-family: 宋体;">测试范围:0.01m2/g-无已知上限、�/span></p><p style="margin-left: 24px; white-space: normal;"><span style="font-family: 宋体;">2) </span><span style="font-family: 宋体;"> 测试精度：重复性误差〈�?%</span></p><p style="margin-left: 24px; white-space: normal;"><span style="font-family: 宋体;">3) </span><span style="font-family: 宋体;"> 主机功能：快速测试单点、多点BET比表面积� 6-7分钟一个样品、�/span></p><p style="white-space: normal;"><strong><span style="font-family: 仿宋; font-size: 14px;"> </span></strong></p><p><strong><span style="font-family: 仿宋; font-size: 14px;"><br/></span></strong></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;"> 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"}); 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