GT5000便携式多参数土壤呼吸测量系统

GT5000便携式多参数土壤呼吸测量系统是芬兰Gasmet公司生产的一款基于傅里叶变换红外光谱（FTIR）技术的便携式高精度土壤温室气体排放监测系统。 该仪器可以在数秒内同时测定多种主要的温室气体成分，如：N2O，CH4，CO2，H2O，CO和NH3，且测量精度可达ppb级。GT5000便携式多参数土壤呼吸测量系统可用于农田，湿地，森林，牧场，电厂，火灾现场等各种环境中的温室气体排放测量。

主要特点

• 傅里叶变换红外光谱技术；
• 同时测量N₂O，CH₄，CO₂，H₂O，CO和NH₃等6种温室气体，最多可同时测量50种气体；
• 多种无线连接方式，如WI-FI或蓝牙；
• 无需专业知识，用户可通过导航进行操作，一键测量和即时的在线处理结果；
• 五种不同的视图展示相关的测量信息；
• 自动气室有机械臂，可缓慢升降；
• 气室的内部进出回路可有效的促进气体混合，通气口的设计可确保稳定的大气压力，配备GPS模块、WI-FI通讯模块和环境传感器（土壤湿度、温度和电导率参数）；

主要温室气体的测量范围和检测限

气体	测量范围	检测限
H2O	0-3%	0.010 Vol-%
CO2	0-2000 ppm	5 ppm
CH4	0-100 ppm	40 ppb
N2O	0-50 ppm	7 ppb
NH3	0-100 ppm	70 ppb
CO	0-200 ppm	70 ppb

 

技术参数

可选气室

便携式自动土壤呼吸室 自动气室有机械臂，可缓慢升降； 通气口的设计可确保稳定的大气压力，且不会通过反向扩散影响测量； 气室的内部进出回路可有效的促进气体混合。

群落静态光合箱——生态系统净交换量（NEE）测量 配备系统控制单元，单元包括可充电锂电池、WI-FI通讯模块、GPS模块、空气温湿度传感器、土壤传感器、混气风机电源接口； 高透明亚克力材质，可定制形状尺寸，内置气体混合风扇； 配合通量计算软件，NEE测量结果可直接显示并保存； 可以测量单个植物或群落（如灌木和草地）的净光合速率。

自动开闭静态箱

自动NEE室，满足长期连续NEE测量需求； 通量计算软件可设置自动室的启闭时间和周期； 全开放对流设计，腔体打开时可与环境气体充分交换； 太阳能供电，满足野外长期使用要求 测定时间短，可长期定点观测 自动控制叶室开合，可长期无人看守自动测量 抗风阻，安全稳定，安装方便，操作容易 过滤网头设计，防止颗粒物进入管路

走航式水面通量气室

通过为自动土壤通量气室添加圆形浮圈，对来自水体的气体进行收集测量，可实现对水-气界面温室气体通量走航式多点位巡测。

走航式、多点位巡测 圆形浮圈设计可漂浮水面、阻抗水流 浮圈一体式设计，重量轻、浮力大、结实、抗冲击力强 安装简单、组合变换灵活、上部采用防滑设计，安全稳固 抗冰冻、紫外线、汽油、油污、耐酸碱、环保无污染 浮圈尺寸：内径320mm，外径720mm，高度220mm 通讯方式：WIFI 内置GPS定位模块

智能多路控制系统

长期土壤呼吸室

特殊的动压平衡设计，更大程度模拟真实环境 可实现长期、连续工作 结构紧凑，体积小，重量轻，携带方便 曲线型设计，防水防尘效果好，适合野外测量 航空插头，快捷、安全、准确 控制方式：复路系统控制（配套）

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产地与厂家：芬兰Gasmet