Gas sensor arrangement
    1.
    发明授权
    Gas sensor arrangement 失效
    气体传感器布置

    公开(公告)号:US5217692A

    公开(公告)日:1993-06-08

    申请号:US689857

    申请日:1991-06-10

    IPC分类号: F02B1/04 G01N27/12 G01N33/00

    摘要: A gas sensor arrangement has at least a first sensor element which is primarily sensitive towards oxidizable gases and generates a corresponding measuring signal and an electric control and evaluation unit, wherein the measuring signal generated by the first sensor element is evaluated. In order to avoid inaccuracies when in addition to the oxidizable gases at the same time also reducible gases are present, the gas sensor arrangement is provided with at least one second sensor element, which is primarily sensitive to reducible gases and generates a corresponding measuring signal, which is fed to the control and evaluation unit for evaluation.

    摘要翻译: 气体传感器装置至少具有对可氧化气体主要敏感的第一传感器元件,并产生对应的测量信号和电控制和评估单元,其中评估由第一传感器元件产生的测量信号。 为了避免不可避免的情况,当除了可氧化气体同时还存在可还原气体时,气体传感器装置设置有至少一个第二传感器元件,其主要对可还原气体敏感并产生对应的测量信号, 供给控制评估单位进行评估。

    Apparatus for measuring a state variable in a gas with at least one
semiconductive gas sensor
    2.
    发明授权
    Apparatus for measuring a state variable in a gas with at least one semiconductive gas sensor 失效
    用至少一个半导体气体传感器测量气体中状态变量的装置

    公开(公告)号:US5668304A

    公开(公告)日:1997-09-16

    申请号:US744449

    申请日:1996-11-06

    IPC分类号: G01N27/12 G01N33/00 G01N7/00

    CPC分类号: G01N27/122 G01N33/007

    摘要: To eliminate the effects of semiconductive sensor aging in the use of a semiconductive sensor for measuring the state variables of a gas in a system in which a pair of electrodes are embedded in an active semiconductive layer so that the conductivity of the semiconductive layer varies as a function of the state variable, a field electrode is provided and superimposed upon the measurement voltage, a voltage pulse is applied intermittently and the characteristic of the resulting current pulse is used to compensate for changes resulting from aging of the sensor.

    摘要翻译: 为了消除半导体传感器老化对使用半导体传感器的影响,用于测量其中一对电极嵌入有源半导体层中的系统中的气体的状态变量,使得半导体层的导电性变化为 状态变量的功能,场电极被提供并叠加在测量电压上,间歇地施加电压脉冲,并且使用所得到的电流脉冲的特性来补偿由传感器的老化引起的变化。