Sensor for determining the carbon monoxide concentration of a gas mixture
    3.
    发明申请
    Sensor for determining the carbon monoxide concentration of a gas mixture 审中-公开
    用于确定气体混合物的一氧化碳浓度的传感器

    公开(公告)号:US20050029102A1

    公开(公告)日:2005-02-10

    申请号:US10491255

    申请日:2002-10-02

    摘要: A sensor (1) for ascertaining a carbon monoxide concentration of a gas mixture (2), having a proton-conducting electrolyte (4) disposed between at least two electrochemically active electrodes (5, 6), in particular catalytically active electrodes (5, 6), of which at least one electrode is CO-sensitive, and in which a measurement unit (8) for measuring at least a first, electrical operating parameter of the sensor (1) at at least one electrode (5, 6) of the sensor (1) is provided, is proposed, with which calibration intervals are markedly lengthened and cross-sensitivities are minimized. This is attained according to the invention in that an evaluation unit (8) is provided for evaluating a change over time in the first, electrical operating parameter of the sensor (1) as a function of a known change over time of at least one second operating parameter.

    摘要翻译: 一种用于确定气体混合物(2)的一氧化碳浓度的传感器(1),其具有设置在至少两个电化学活性电极(5,6)之间的质子传导电解质(4),特别是催化活性电极(5, 6),其中至少一个电极是CO敏感的,其中用于在至少一个电极(5,6)处测量传感器(1)的至少第一电操作参数的测量单元(8) 提供了传感器(1),其中校准间隔被显着延长并且交叉敏感度被最小化。 这是根据本发明获得的,因为提供了评估单元(8),用于根据已知的至少一秒的时间变化的函数来评估传感器(1)的第一电操作参数中随时间的变化 操作参数。