美国2B Model BCP黑碳�?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><strong>美国2B公司Model BCP 黑碳�?/strong></p><p>产品介绍９�/p><p>BCP黑碳仪是一款坚固，便携，高精度且经济的仪器，用于测量城市环境中污染的大气黑碳颗粒� BCP黑碳仪使�?*直接长光程光度测量技术实时量化气溶胶（气�?颗粒）当中的颗粒的总消光系数和质量浓度� 这种直接测量的方法避免了与当前市场上其它同类仪器相关的伪影和其他偏差问题，例如当�?常用的测定方法，就是使用过滤器来预浓缩样品再进行分析、�/p><p>BCP黑碳仪的光度计检测单元采用折叠管状式设计，这是一项创新技术，可以快速清洗管路，这对于样品和参比测量之间的快速切换是必需的。因此BCP黑碳仪具有很高灵敏度，不需要对样品进行预浓缩，并可直接快速测量黑碳。折叠式吸收单元在紧凑的空间内提供长2.1米的吸收路径长度，实现仪器重量只�?.6千克，和更小的体积直接安装在标准机架上、�/p><p>BCP黑碳光度计是在两种波长（405 nm�?80 nm）下直接测量颗粒物的总消光度（吸光度+散射度），消光度的单位为Mm-1。。黑碳气溶胶的浓度主要是�?80nm波长处测得，可测量的黑碳质量浓度范围�?.1-1�?00��g/m3。在较短�?05nm波长处的消光度可以更好获得气溶胶光学吸收，光学特性，辐射传输，排放源及源解析等多方面信息，比如与PM2.5相关定位信息。BCP黑碳光度计对于研究黑碳在空气质量和气候中的作用的研究人员以及对估计社区暴露风险感兴趣的空气质量管理人员非常有用、�/p><p>在黑碳光度计�?80 nm）的较长波长下，吸收对消光的贡献要大得多� 在受污染的城市空气中，仪器在880 nm处的响应主要是由于黑碳吸收� 通过�?80 nm处使用适当的黑碳吸收系数（?abs，m2 g-1）将测得的消光度转换为黑碳浓度（Ca�?gm-3）：Ca = Bext /?MEC?Bext/?abs� 在仪器的较短波长�?05nm）处，散射占主导地位并且仪器响应更能指示总气溶胶浓度� 仪器中使用了880 nm黑碳的质量消光系数（?MEC）的默认值，但用户可以根据采样环境轻松修改两个波长的?MEC、�/p><p>产品特点９�/p><p>通过两个波长�?80 nm�?05 nm）的微粒直接测量消光，可以实时测量颗粒物质，包括黑碳和PM2.5、�/p><p>直接方法消除了在滤波器上预浓缩样本的需要，从而避免了相关的伪僎�/p><p>功耗：预热后约15�?/p><p>重量轻（�?9磅，8.6千克），标准机架安装尺寸</p><p>长寿命泵（约15�?00小时（�/p><p>触摸屎�/p><p>用于便携式数据记录的USB端口</p><p>内部数据记录器（EEPROM）记�?�?92行数�?/p><p>串行和用户可扩展的模拟电压输凹�/p><p>通过触摸屏或串行方便用户与微处理器的接口，包括校准参数（增益和零）和质量转换系数</p><p>可选择的测量时间为10秒，数据平均时间�?分钟�?分钟�?小时</p><p>内置归零功能</p><p>几乎不需要技术维护，适合在现场条件下连续运行（能够进行电池供电）</p><p>与其他商用仪器相比，经济实惠</p><p>可选配置：</p><p>用于无线数据传输的蓝牘�/p><p>USB输出（代替RS232（�/p><p><span>技术要求：</span></p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><p><span>测量原理</span></p></td><td><p><span>�?/span><span>405</span><span>咋�/span><span>880 nm</span><span>处直接消先�/span></p></td></tr><tr><td><p><span>测量输出</span></p></td><td><p><span>�?/span><span>405</span><span>咋�/span><span>880 nm</span><span>处的消光＇�/span><span>Mm-1</span><span>（�/span></p><p><span>�?/span><span>880 nm</span><span>处的质量浓度＇�/span><span>g/m3</span><span>（�/span></p></td></tr><tr><td><p><span>线性动态范図�/span></p></td><td><p><span>0-10�?00 Mm-1</span><span>＇�/span><span>880 nm</span><span>旵�/span><span>0-1300g/m3</span><span>（�/span></p></td></tr><tr><td><p><span>分辨玆�/span></p></td><td><p><span>0.1 Mm-1</span><span>＇�/span><span>0.1g/m3</span><span>（�/span></p></td></tr><tr><td><p><span>精度</span></p></td><td><p><span>0.3g/m3;0.06g/m3</span><span>加滤波器</span></p></td></tr><tr><td><p><span>准确�?/span></p></td><td><p><span>大于</span><span>2 Mm-1</span><span>或读数的</span><span>2</span><span>＄�/span></p></td></tr><tr><td><p><span>检测限</span></p></td><td><p><span>�?/span><span>880 nm</span><span>夃�/span><span><1.0 Mm-1</span></p><p><span>�?/span><span>405 nm</span><span>夃�/span><span><1.6 Mm-1</span></p></td></tr><tr><td><p><span>校准流量</span></p></td><td><p><span>1.3</span><span>卆�/span><span>/</span><span>分钟</span></p></td></tr><tr><td><p><span>流量要求</span></p></td><td><p><span>*小值：</span><span>1.0</span><span>卆�/span><span>/</span><span>分钟</span><span>; </span><span>**９�/span><span>1.6</span><span>卆�/span><span>/</span><span>分钟</span></p></td></tr><tr><td><p><span>响应时间</span></p></td><td><p><span>100</span><span>％的步进变化</span><span>20</span><span>秒，</span><span>10</span><span>秒平坆�/span><span>30</span><span>秒，自适应滤波�?/span><span>1</span></p></td></tr><tr><td><p><span>测量频率</span></p></td><td><p><span>0.1 Hz</span><span>（每</span><span>10</span><span>秒一次）</span></p></td></tr><tr><td><p><span>采集数据平均时间</span></p></td><td><p><span>10</span><span>秒，</span><span>1</span><span>分钟＋�/span><span>5</span><span>分钟＋�/span><span>1</span><span>小时</span></p></td></tr><tr><td><p><span>内部数据记录器容野�/span></p></td><td><p><span>8�?92</span><span>行（</span><span>10</span><span>秒平均倻�/span><span>= 0.95</span><span>�?/span><span>; 1</span><span>分钟平均倻�/span><span>= 5.7</span><span>�?/span><span>; 5</span><span>分钟平均倻�/span><span>= 1.0</span><span>个月</span><span>; 1</span><span>小时平均倻�/span><span>= 0.94</span><span>年）</span></p></td></tr><tr><td><p><span>输出</span></p></td><td><p><span>USB</span></p></td></tr><tr><td><p><span>压力单位</span></p></td><td><p><span>mbar</span></p></td></tr><tr><td><p><span>温度单位</span></p></td><td><p><span>��</span><span>C</span></p></td></tr><tr><td><p><span>工作温度范围</span></p></td><td><p><span>5</span><span>�?/span><span>45</span><span>��</span><span>C</span></p></td></tr><tr><td><p><span>工作压力</span></p></td><td><p><span>600-1000 mbar</span></p></td></tr><tr><td><p><span>电源</span></p></td><td><p><span>交流甴�/span><span>110/220 VAC</span><span>＋�/span><span>2.5A</span><span>；电江�/span><span>11-14 V dc</span><span>：�/span><span>15W</span></p></td></tr><tr><td><p><span>尺寸</span></p></td><td><p><span>43</span><span>��</span><span>37</span><span>��</span><span>14 cm</span></p></td></tr><tr><td><p><span>重量</span></p></td><td><p><span>8.6 kg</span></p></td></tr><tr><td><p><span>数据输出</span></p></td><td><p><span>RS232; 0-2.5 V</span></p></td></tr><tr><td><p><span>数据传输波特玆�/span></p></td><td><p><span>2400 </span></p></td></tr><tr><td><p><span>泵寿呼�/span></p></td><td><p><span>15�?00</span><span>小时</span></p></td></tr></tbody></table><p><strong>美国2B公司Model BCP 黑碳�?/strong> 中国技术服务中忂�/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="313766" /> <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）">