HT8700E开放式NH3分析�?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><span>HT8700E开放式NH </span><sub><span>3</span></sub><span>分析�?/span></strong></p><p><strong><span>快速大气氨气测野�/span></strong></p><p><strong><span>高灵敏度和分辨率</span></strong></p><p><strong><span>便携式设计和低功耖�/span></p><p></strong></p><p><strong><span>简今�/span></strong></p><p><span>大气氨气（NH </span><sub><span>3</span></sub><span>）是细颗粒物质的先驱，对空气质量和气候变化具有影响、�/span><span>过去，氨气通量的测量受到检测挑战的限制，从而导至�/span><span>全世畋�/span><span>NH </span><sub><span>3</span></sub><span>排放</span><span>估算中的巨大误差</span><span>、�/span></p><p><span>我们的HT8700E是开放式大气NH </span><sub><span>3</span></sub><span>分析仪基于下一代中红外激光光谱仪，可确保分析仪的高精度和高灵敏度、�/span><span>与传统的封闭路径分析仪相比，开放路径配�?*程度地减少了与NH </span><sub><span>3</span></sub><span>表面吸附到管道上</span><span>相关的采样伪彰�/span><span>，从而确保了高速NH </span><sub><span>3</span></sub><span>测量、�/span></p><p><span>HT8700E克服了传统仪器的局限性，完全满足涡度协方差技术的要求、�/span><span>该分析仪功耗低，重量轻且易于维护、�/span><span>它可以适应各种偏远的生态环境，也可以安装在行驶的车辆上、�/span></p><p><strong><span>具有</span></strong></p><p><strong><span><span>开放路径，高灵敏度和快速响应的特点</span></span></strong></p><ul><li><p><span>使用激光光谱仪进行</span><span> 超灵敏的NH </span><sub><span>3</span></sub><span>密度测量</span></p></li><li><p><span>无需泴�/span></p></li><li><p><span>没有时间延迟或吸附在管上的衰凎�/span></p></li><li><p><span>快速响应大型NH </span><sub><span>3</span></sub><span>浓度变化</span></p></li></ul><p><strong><span><span>便携式设计，适用于多种现场部罱�/span></span></strong></p><ul><li><p><span>较强的环境适应性和抗振�?/span></p></li><li><p><span>增强型碳纤维光机械，�?*程度地减少系统漂移和重量</span></p></li><li><p><span>加热后视镜可避免因凝结而造成信号丢失</span></p></li></ul><p><strong><span><span>远程现场和移动测野�/span></span></strong></p><ul><li><p><span>太阳能电池板或电池可以提供低功率</span></p></li><li><p><span>轻巧＇�10kg（�/span></p></li><li><p><span>易于在偏远地区或车辆上安装和维护</span></p></li></ul><p><strong><span>我们的技�?/span></strong></p><p><span>HT8700E基于**的波长调制量子级联激光吸收光谱（WM-QCLAS）技术、�/span><span>*近，QCL技术的进步使HealthyPhoton能够引入基于QCL的分析仪，该分析仪利�?/span><span>中红外光谱带</span><span>中NH </span><sub><span>3</span></sub><span>的强吸收纾�/span><span>来实�?*的高精度和高选择性分析、�/span></p><p><span>基本方法是校准扫过NH </span><sub><span>3</span></sub><span>分子</span><span>的特定吸收光谱线的QCL波长</span><span>、�/span><span>透射光被光电探测器接收，并提取和分析透射光谱的谐波分量、�/span></p><p><strong><span><span>中红外激光光谰�/span></span></strong></p><p><span>近红外二极管激光器已用于NH </span><sub><span>3</span></sub><span>检测、�/span><span>然而，NH </span><sub><span>3</span></sub><span>分子在近红外区域�?1.5um（�/span><span>的吸收峰强度</span><span>非常低，这限制了检测精度、�/span><span>与近红外区域相比，图1显示NH </span><sub><span>3</span></sub><span>在中红外波段�?-10um）具�?00倍更强的吸收峰、�/span><span>我们使用****的半导体QCL作为红外激光源、�/span><span>暴露在大气中的两个高反射镜之间的激光束多次反射产生了几十米的有效光程、�/span><span>使用调制的激光信号的锁定放大（图2所示）提取在光谱峰值处的激光能量吸收、�/span><span>�?/span><span>我们使用的频带中</span><span>，吸收峰与H </span><sub><span>2</span></sub><span> O，CO和其他大气痕量气佒�/span><span>没有重叠</span><span>，从而确保了抗干扰NH </span><sub><span>3皃�/span></sub><span>测量、�/span><span>结合专有的信号处理技术，NH </span><sub><span>3</span></sub><span>有效检测基本转变，并以低于ppb的灵敏度检索气体浓度、�/span></p><p></p><p><span>�? </span><span>在近红外（蓝色块）和中红外（红色块）�?/span><span>中NH </span><sub><span>3皃�/span></sub><span>吸收�?/span></p><p></p><p><span>�?系统示意图、�/span><span>P＆T是环境压力和温度传感器、�/span><span>LD＆TC是激光电流驱动器和温度控制器、�/span><span>L是QC激光源、�/span><span>BS是分束器、�/span><span>M1和M2是开放路径Herriott单元配置中的两个高反射镜、�/span><span>M3是反射镜，R是参考气室、�/span><span>D1 / Pre-amp1和D2 / Pre-amp2是分别具有低噪声前置放大器的红外光电探测器，用于信号和参考路径、�/span><span>FPGA + MCU负责数据采集，处理，频谱检索以及系统控�?通信、�/span><span> 以前</span></p><p><strong><span><span>的开放路径配�?/span></span></strong></p><p><span>NH </span><sub><span>3</span></sub><span>闭路分析仪中的表面吸附和解吸作用将响应时间限制在几秒钟或更长时间、�/span><span>我们的开放通道配置**程度地减少了与NH </span><sub><span>3</span></sub><span>表面吸附到进口管三�/span><span>有关的采样假豠�/span><span>、�/span><span>HT8700E可确保较短的响应时间�?0Hz的数据输出，满足</span><span>移动平台三�/span><span>瞬时NH </span><sub><span>3</span></sub><span>排放测量和涡流协方差通量测量的要求、�/span></p><p><strong><span>技术指栆�/span></strong></p><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><strong>物品</strong></td><td><strong>技术指栆�/strong></td></tr><tr><td><span>分辨率（1s; 0.1s / 1s / 10s（�/span></td><td><span>0.5 ppb / 0.15 ppb / 0.05 ppb</span></td></tr><tr><td><span>测量范围</span></td><td><span>典型� </span><span>0-10 ppm（可�?-20 ppm（�/span></td></tr><tr><td><span>输出带宽</span></td><td><span>10 Hz（可�?0 Hz（�/span></td></tr><tr><td><span>工作压力范围</span></td><td><span>70-110 kPa</span></td></tr><tr><td><span>工作相对湿度范围</span></td><td><span>0- </span>非冷凜�/td></tr><tr><td><span>工作温度范围</span></td><td><span>-20?45ℂ�/span></td></tr><tr><td><span>数据通讯</span></td><td><span>RS-232</span></td></tr><tr><td><span>检测方泔�/span></td><td><span>波长调制量子级联激光吸收光谰�/span></td></tr><tr><td><span>电源要求</span></td><td><span>18�?9 VDC</span></td></tr><tr><td><span>能量消耖�/span></td><td><span>标称50 W</span></td></tr><tr><td><span>尺寸国�/span></td><td><span>直径20厘米，高�?3.4厘米</span></td></tr><tr><td><span>光路</span></td><td><span>物理路径0.5 m：�/span><span>49 m测量路径</span></td></tr><tr><td><span>重量</span></td><td><span>5公斤</span></td></tr><tr><td><span>环境适应�?/span></td><td><span>IP67</span></td></tr></tbody></table><table cellspacing="0" cellpadding="2" border="1" bordercolor="#f2f2f2" width="100%"><tbody><tr><td><strong>物品</strong></td><td><strong>描述</strong></td></tr><tr><td><strong>HT8700E</strong></td><td><span>基于QCL的开放式NH </span><sub><span>3</span></sub><span>分析�?/span></p><p><span>包括�?4VDC电源适配�?#215;1，镜清洁套件��1，循环水冷却系统��1，可移动仪器�?#215;1</span></td></tr><tr><td><strong>HT8700E </strong><strong>-GPSv（可选）</strong></td><td><span>带RS-232输出的GPS模块</span></td></tr></tbody></table><p><strong><span>应用说明</span></strong></p><p><strong><span><span>畜牧场的现场测量</span></span></strong></p><p><span>�?显示了典型的氨气移动分析系统、�/span><span>它包含HealthPhoton HT8700E氨气分析仪，坎贝尔的CR3000数据采集模块，GPS模块，风速计模块和实时数据处理模块、�/span><span>整个系统可以安装在汽车行李架上，并实时收�?0Hz高速氨气浓度数据、�/span><span>GPS模块和风速仪模块同时收集纬度，经度位置数据，风向和风速数据、�/span><span>数据被同步并传输到云以进行远程数据处理、�/span><span>实时浓度分析为高速，准确的氨气排放监测和追踪提供了完整的解决方案、�/span></p><p><span>�?显示了畜牧场周围的测试大气氨浓度、�/span><span>红色的大头针表示服务器场的位置，颜色跟踪是测试路线、�/span><span>蓝色表示浓度低，而红色表示浓度高、�/span><span>我们在实验中发现了两个浓度峰值（> 250 ppb），分别位于农场的正门（349.3 ppb）和粪便倾泻区、�/span><span>它们都是氨气排放源，浓度随着距离的增加而逐渐降低、�/span><span>�?是瞬时氨浓度数据的样本，显示了对浓度变化的短响应时间＇�1秒）、�/span><span>实验证明了该系统在行驶数百公里的车辆上的稳定性和可靠性，同时实现了亚ppb级氨的高速，高精度测量、�/span></p><p><strong></strong></p><p><span>�?基于HT8700E的氨气移动分析系绞�/span></p><p></p><p><span>�?畜牧场周围的大气氨气浓度</span></p><p></p><p><span>图图5数据显示浓度变化响应时间小于1科�/span></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; 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