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    • 4. 发明申请
    • PORTABLE ELECTRONIC SYSTEM FOR THE ANALYSIS OF TIME-VARIABLE GASEOUS FLOWS
    • 便携式电子系统用于时变气流分析
    • WO2016005866A1
    • 2016-01-14
    • PCT/IB2015/054994
    • 2015-07-02
    • NANOTECH ANALYSIS S.R.L.S.
    • MENSA, GianpieroCORREALE, Raffaele
    • G01N1/22H01J49/04B01L3/00H01J49/00G01N30/72
    • G01N30/722G01N30/7206H01J49/0018H01J49/0427
    • A portable system 1 for analyzing gaseous flows that vary over time is described, the system comprising a sampling chamber 18, a gas sampling module 7, an ion filtering module 8 and an ion detecting module 9. The sampling chamber 18 is suitable to be kept at a controlled sampling pressure Pc, and is configured to receive at least one gaseous flow F having a gaseous composition to be analyzed that is variable over time. The gas sampling module 7, arranged in fluidic communication with the sampling chamber 18, is configured to adjust an input gaseous flow Fi of gas particles from the sampling chamber 18, and an output gaseous flow Fo from the sampling module 7, so as to reproduce inside the sampling module 7 a gaseous composition representative of the gaseous composition to be analyzed. The gas sampling module 7 is further configured to ionize said gas particles and to emit the produced ions, so as to generate an ion flow I having an ion composition representative of the gaseous composition to be analyzed. The sampling module 7 is also suitable to maintain inside it a controlled ionization pressure Pi, and it is also configured in such a way that the input gaseous flow Fi comprises a plurality of micro-flows at a molecular or predominantly molecular regime, at the sampling pressure Pc, and the output gaseous flow Fo is a flow at a molecular or predominantly molecular regime, at the ionization pressure Pi. The ion filtering module 8 is operatively connected to the sampling module 7 to receive the ion flow I, and is configured to controllably select at least one type of ion present in the ion flow I and to generate a corresponding at least one homogeneous ion beam l', having an intensity representative of the concentration of the corresponding gas particle in the gaseous composition to be analyzed. The ion detecting module 9 is operatively connected to the ion filtering module 8 to receive the at least one ion beam l', and is configured to measure the intensity of the at least one ion beam l' and to generate a corresponding electric signal S representative of the concentration of the corresponding gas particle in the gaseous composition to be analyzed.
    • 描述了用于分析随时间变化的气流的便携式系统1,该系统包括采样室18,气体采样模块7,离子过滤模块8和离子检测模块9.采样室18适于保持 以受控采样压力Pc,并且被配置为接收具有随时间变化的要分析的气体组成的至少一个气态流F。 配置成与采样室18流体连通的气体采样模块7配置成调节来自采样室18的气体颗粒的输入气流F 1和来自采样模块7的输出气流Fo,以便再现 采样模块7内部是表示要分析的气体组成的气态组成。 气体采样模块7进一步配置为离子化所述气体颗粒并发射产生的离子,以产生具有代表要分析的气体组成的离子组成的离子流I. 采样模块7也适合于在其内部保持受控的电离压力Pi,并且其还被配置成使得输入气流F i在分子或主要是分子状态下包含多个微流,在采样 压力Pc,并且输出气流Fo是在电离压力Pi处的分子或主要分子状态的流。 离子过滤模块8可操作地连接到采样模块7以接收离子流I,并且被配置为可控地选择存在于离子流I中的至少一种离子,并产生相应的至少一个均匀离子束l ',具有代表待分析的气体组合物中相应气体颗粒的浓度的强度。 离子检测模块9可操作地连接到离子过滤模块8以接收至少一个离子束1',并且被配置为测量至少一个离子束1'的强度并产生相应的电信号S代表 在待分析的气体组合物中的相应气体颗粒的浓度。