Tiger-i 2000 CH4分析�?参数-价格-中国粉体罐�/title>

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<p><span>在过去的</span><span>100<span>年间，甲烷（</span><span>CH</span><sub><span>4</span></sub><span>）的全球变暖潜能值比二氧化碳＇�/span>CO</span><sub><span>2</span></sub><span>）要髗�/span>20<span>倍。而缩短到运�/span><span>20</span><span>年内，如果假设其在大气中存在的期限为</span><span>12</span><span>年左右的话，评估得出的甲烷（</span><span>CH</span><sub><span>4</span></sub><span>）全球变暖潜能值更高，超过二氧化碳＇�/span>CO</span><sub><span>2</span></sub><span>（�/span>60<span>倍以上。因此，甲烷＇�/span><span>CH</span><sub><span>4</span></sub><span>）是近期降低全球变暖危害的主要目标、�/span></p><p><span>目前大气中甲烷（</span>CH</span><sub><span>4</span></sub><span>）的浓度与工业文明之前相比，数值从</span>700ppb<span>的水平增加到亅�/span><span>1.8ppm</span><span>，翻了超迆�/span><span>2</span><span>倍。科学家们从源与汇的角度开展深入研究，以期更好地制定缓解策略和提高气候模型的精度、�/span></p><p></p><p><span>在自然界，甲烷的排放主要是由厌氧细菌的活动引起。有机物质通过发酵形成甲烷＇�/span>CH</span><sub><span>4</span></sub><span>）和二氧化碳＇�/span>CO</span><sub><span>2</span></sub><span>），而氢和二氧化碳（</span>CO</span><sub><span>2</span></sub><span>）又会在一种产甲烷菌的作用下，被转化为甲烷和水９�/span><span>CH</span><sub><span>4 </span></sub><span>+ CO</span><sub><span>2</span></sub><span>?</span><span>H3C-COOH</span><span>＋�/span><span>CH</span><sub><span>4</span></sub><span> + 2H</span><sub><span>2</span></sub><span>O</span><span>?</span><span>4H</span><sub><span>2</span></sub><span> + CO</span><sub><span>2</span></sub><span>。湿地是迄今为止甲烷＇�/span>CH</span><sub><span>4</span></sub><span>）排�?显著的自然源，此外白蚁的活跃、火山喷发、森林火灾、甲烷水合以及野生动物的活动也是常见的甲烷（</span>CH</span><sub><span>4</span></sub><span>）排放形式、�/span></p><p><span>就甲烷（</span>CH</span><sub><span>4</span></sub><span>）排放的自然源和人为源而言，有超过一半的甲烷＇�/span>CH</span><sub><span>4</span></sub><span>）排放是由人类活动导致的。天然气及矿产资源的开发和输送是*为显著的人为甲烷＇�/span>CH</span><sub><span>4</span></sub><span>）排放方式，无论矿场是在开发过程中还是已经废弃；农业上的精耕细作诸如水稻种植、牲畜饲养也都会排放大量的甲烷（</span>CH</span><sub><span>4</span></sub><span>）。这些排放源定量化评估的精确性是未来减少甲烷排放、碳排放合理交易的关键步骤、�/span></p><p><strong><span>产品简今�/span></strong></p><p><span>美国</span><span>Tiger Optics<span>公司�?/span><span>2001<span>年开始在全球推广基于</span><span>连续光腔衰荡光谱技�?/span><span>＇�/span>CW-CRDS<span>）的痕量气体分析仪，迄今为止，已经服务了数以千计的工业和科学应用。此外，他们的痕量气体分析产品还服务于全球多�?**的计量研究院＋�/span><span>建立和验证了诸多标准和零标气佒�/span><span>。为众多全球变暖和城市空气质量方面相关的科研议题提供了高精度的研究工具、�/span></p><p><span>基于全球平台＋�/span><span>美国</span>Tiger Optics<span>公司的痕量气体分析仪</span>Tiger-</span><span>i</span><span> 2000 CH</span><sub><span>4</span></sub><span>甲烷分析�?/span><span>，采用连续光腔衰荡光谱（</span><span>CW-CRDS</span><span>）技术，�?/span><span>ppb</span><span>级的超高灵敏度测量环境气体中甲烷＇�/span>CH</span><sub><span>4</span></sub><span>）的浓度，即使在不断变化的环境条件下可以维持高度的线性、精确度和准确性，并且能在非常长的使用周期内几乎不需要校准、�/span></p><p><strong><span>技术原琅�/span></strong></p><p><span>光腔衰荡光谱技�?/span><span>(CRDS)</span><span>通过测量时间而不是强度的变化来确定光学吸收。光源发出的脉冲激光进入光腔并且由高反射率的镜面形成的光程高达</span>100km<span>的多次反射中，每次都有少量的光透过镜面而离开光腔，这部分光就构成了光衰荡信号，它的强度变化可简单地用单指数衰减来描述。光强度以指数级迅速衰减直至为零，这种衰减被光电感应器实时记录，此时空光腔的衰荡时间仅由镜子的反射率决定。当光腔中有气体存在时，气体分子对激光的吸收必将改变光腔衰荡时间，并且其浓度与衰荡时间的倒数（也即衰荡速度）密切相关、�/span><span>Tiger-</span><span>i</span><span> 2000 CH</span><sub><span>4</span></sub><span>甲烷分析仪可连续自动测量和计算比较空光腔与充有待测气体的光腔的衰荡时间差，继而得出待测目标气体的浓度、�/span></p><p><span>经过</span>TigerOptics<span>公司改进的连续光腔衰荡光谱技术（</span><span>CW-CRDS</span><span>），使用性价比更高、功耗更低、分辨率更高的连续光二极管激光器，能够大大提高光腔耦合效率，快速重复测量周期、�/span></p><p><span></span></p><p><strong><span>特点</span></strong></p><ul><li><p><span>应用</span>CW-</span><span>CRDS</span><span>�?*“�/span><span>测量技术，无需标气校准</span></p></li><li><p><span>高精确度和灵敏度，无漂移</span></p></li><li><p><span>显著改进响应速度</span></p></li><li><p><span>ppt<span>级超低检测限</span></p></li><li><p><span>对环境温度变化不敏感</span></p></li><li><p><span>低成本，免维抣�/span></p></li><li><p><span>应用可追溯到****的参考实验室</span></p></li></ul><p><strong><span>技术参�?/span></strong></p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><p><strong><span>性能指标</span></strong></p></td><td></td><td><p><strong><span>Dimensions</span></strong><strong><span>尺寸</span></strong></p></td><td><p><strong><span>H x W x D [in (mm)]</span></strong></p></td></tr><tr><td><p><span>测量范围</span></p></td><td><p><span>0-100ppm</span><sup><span>+</span></sup><span>�?*可扩展至<span>1000ppm</span></p></td><td><p><span>标准分析�?/span></p></td><td><p><span>8.73 x 8.57 x 23.6 (222 x 218 x 599)</span></p></td></tr><tr><td><p><span>检测限</span></p></td><td><p><span> 10ppb</span></p></td><td><p><strong><span>重量</span></strong></p></td><td></td></tr><tr><td><p><span>精度</span><span> (1��</span><span>，greater of)</span></p></td><td><p><span>��</span><span> 0.75%</span><span>戕�/span><span>1/3<span>灵敏�?/span></p><p><span>典型的环境气体，趄�span>24</span><span>小时</span><span><15ppb </span></p></td><td><p><span>标准分析�?/span></p></td><td><p><span>33 lbs (15 kg)</span></p></td></tr><tr><td><p><span>准确�?/span><span> (greater of)</span></p></td><td><p><span>�� 4% or LDL</span></p><p><span>典型的环境气体， <span><80ppb</span></p></td><td><p><strong><span>电气参数</span></strong></p></td><td></td></tr><tr><td><p><span>响应速度</span></p></td><td><p><span> 3 minutes</span><span> to 95%</span></p></td><td><p><span>警报指示�?/span></p></td><td><p><span>2 </span><span>用户可编稊�/span></p></td></tr><tr><td><p><span>环境条件</span></p></td><td><p><span>1</span><span>0</span><span>��C to </span><span>4</span><span>0��C</span></p></td><td></td><td><p><span>1 </span><span>系统故障</span></p></td></tr><tr><td></td><td><p><span>1</span><span>0% to </span><span>9</span><span>0% RH </span><span>（无结露</span><span>)</span></p></td><td></td><td><p><span>继电�?/span><span>关联</span></p></td></tr><tr><td><p><span>存储温度</span></p></td><td><p><span>-10��C to 50��C</span></p></td><td><p><span>动力要求</span></p></td><td><p><span>90 ? 240 VAC� 50/60 Hz</span></p></td></tr><tr><td colspan="2"><p><strong><span>气体处理系统和条仵�/span></strong></p></td><td><p><span>电量消耖�/span></p></td><td><p><span>小于</span><span>4</span><span>0W</span></p></td></tr><tr><td><p><span>气体接口</span></p></td><td><p><span>1/4英寸的PFA气体进出叢�/span></p></td><td><p><span>信号输出</span></p></td><td><p><span>独立输出</span><span> 4?20 mA</span></p></td></tr><tr><td><p><span>入口压力</span></p></td><td><p><span>0 ? 1</span><span>5</span><span> psig (1 � </span><span>2</span><span> bara)</span></p></td><td><p><span>用户界面</span></p></td><td><p><span>5.7� LCD</span><span>触摸屎�/span></p></td></tr><tr><td><p><span>出口压力</span></p></td><td><p><span>真空</span><span> (<10 Torr)</span></p></td><td></td><td><p><span>10/100 Base-T </span><span>以太罐�/span></p></td></tr><tr><td><p><span>流量</span></p></td><td><p><span>~</span><span>1</span><span> slpm @</span><span>1<span>大气压进气口压力</span></p></td><td></td><td><p><span>USB� RS-232＋�/span></p></td></tr><tr><td><p><span>测量频率</span></p></td><td><p><span>1Hz</span></p></td><td></td><td><p><span>802.11g <span>无线网络（可选）</span></p></td></tr><tr><td><p><span>气体温度</span></p></td><td><p><span>小于</span><span> 60��C</span></p></td><td><p><span>信息存储</span></p></td><td><p><span>内部或外部闪字�/span></p><p><span>15s<span>记录间隔，存�?/span><span>5</span><span>�?/span></p><p><span>1min<span>记录今个，存�?/span><span>3</span><span>�?/span></p></td></tr></tbody></table><p><strong><span>产地</span></strong><strong><span>９�/span></strong><strong><span>美国</span></strong></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"); 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