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    Measuring gas components together with a paramagnetic gas
    4.
    发明公开
    Measuring gas components together with a paramagnetic gas 有权
    气球on。。。。chen chen chen chen chen chen chen chen chen chen chen。

    公开(公告)号：EP1840563A1

    公开(公告)日：2007-10-03

    申请号：EP06111897.2

    申请日：2006-03-29

    申请人： GENERAL ELECTRIC COMPANY

    发明人： Haveri, Heikki ,  Weckström, Kurt

    IPC分类号： G01N27/74

    CPC分类号： G01N27/74 ,  G01N2291/02863 ,  G01N2291/02872

    摘要： The invention concerns a gas analyzer, which comprises: an electromagnet (5) that has an air gap (16); a power source (60) for supplying cyclically variable electrical current/voltage to said electromagnet; a sample gas conduit (1) and a reference gas conduit (2) opening into said air gap; an exit conduit (18, 19) communicating with said air gap for removing the intermixed sample and reference gases; pressure detecting microphone or microphones (3, 4) connected to said sample gas conduit (1) and to said reference gas conduit (2) for sensing gas pressures at a first acoustic measuring frequency ( f A1 ) in the respective conduits for giving at least one acoustic pressure signal component (S 1 and/or S2); and electronics (29) connected to said microphone(s) to receive said acoustic pressure signal component or components to form at least a first intermediate output signal (SI A1 ) describing content of a paramagnetic gas component in the sample gas. Further in the gas analyzer: said pressure detecting microphone(s) are adapted for sensing gas pressures at a second acoustic measuring frequency ( f A2 ), and giving at least a second acoustic pressure signal component (S3 and/or S4); and said electronics receive said second acoustic pressure signal component or components to form a second intermediate output signal (SI A2 ) including content data of a second gas component in the sample gas.

    摘要翻译： 本发明涉及一种气体分析仪，其包括：具有气隙（16）的电磁体（5）; 用于向所述电磁体提供循环可变电流/电压的电源（60）; 样品气体导管（1）和通向所述气隙的参考气体导管（2）; 与所述气隙连通以移除混合样品和参考气体的出口管道（18,19） 压力检测麦克风或连接到所述样品气体导管（1）和所述参考气体导管（2）的麦克风（3,4），用于感测在相应导管中的第一声学测量频率（f A1）的气体压力，用于给出至少 一个声压信号分量（S1和/或S2）; 和连接到所述麦克风的电子装置（29），以接收所述声压信号分量，以形成至少描述样气中顺磁性气体成分含量的第一中间输出信号（SI A1）。 此外，在气体分析器中：所述压力检测麦克风适于用于感测第二声学测量频率（f A2）的气体压力，并给出至少第二声压信号分量（S3和/或S4）; 并且所述电子装置接收所述第二声压信号分量以形成包括样气中第二气体成分的内容数据的第二中间输出信号（SI A2）。

    VERFAHREN UND VORRICHTUNG ZUR ERFASSUNG VON MERKMALEN DER RAUMSTRUKTUR EINES KRISTALLS
    10.
    发明公开
    VERFAHREN UND VORRICHTUNG ZUR ERFASSUNG VON MERKMALEN DER RAUMSTRUKTUR EINES KRISTALLS 审中-公开
    方法和设备检测晶体的空间结构特征分析

    公开(公告)号：EP1149283A1

    公开(公告)日：2001-10-31

    申请号：EP99959623.2

    申请日：1999-12-15

    申请人： Stockburger, Hermann

    发明人： Stockburger, Hermann

    IPC分类号： G01N27/20

    CPC分类号： G06K9/0002 ,  G01N27/20 ,  G01N2291/02863

    摘要： In order to detect the characteristics of the spatial structure of an electroconductive crystal (1), especially a semiconductor, a measuring current is supplied to said crystal and charge distribution is measured at a point (3) different from the current input (4) of the crystal. Information on the spatial structure characteristics is obtained from the relationship between measured charge distribution and standard distribution. In order to produce a defined temporary modification of the spatial structure, the crystal can be subjected to acoustic vibration, especially to the influence of ultrasonic waves (24), which is then measured. The appropriate device for said purpose comprises an electrically conductive crystal structure (1) with source electrodes (4) for supplying a current to the crystal, drain electrodes (3) for removing a current from the crystal and electronic evaluation circuits (20) for obtaining information on the spatial structure of the crystal on the basis of the measured current.