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1. 发明授权

US06301951B1 Method of controlling a sensor for determining an oxygen concentration in a gas mixture 失效
标题翻译：控制用于测定气体混合物中的氧浓度的传感器的方法
公开(公告)号：US06301951B1
公开(公告)日：2001-10-16
申请号：US09382516
申请日：1999-08-25
申请人： Martin Lenfers , Lothar Diehl , Jürgen Schwarz
发明人： Martin Lenfers , Lothar Diehl , Jürgen Schwarz
IPC分类号： G01N27419
CPC分类号： G01N27/417
摘要： In a method of controlling a sensor for determining an oxygen concentration in a gas mixture, in particular in the exhaust gas of internal combustion engines, a detection voltage supplied by a Nernst measurement cell and corresponding to the oxygen concentration is transformed by a circuit arrangement into a pump voltage for a pump cell, and an anodic or cathodic limit current flows over the pump cell, depending on the oxygen content of the gas mixture. In stable operation of the sensor, during which an anodic limit current flows for a selectable period of time, the pump cell and/or the Nernst measurement cell receives at least one voltage pulse supplied independently by the measured detection voltage or the pump current thus established, so that the sensor is depolarized.
摘要翻译：在控制用于确定气体混合物中的氧气浓度的传感器的方法中，特别是在内燃机的废气中，由能斯特测量单元提供并对应于氧气浓度的检测电压由电路装置转换成根据气体混合物的氧含量，泵电池的泵电压和阳极或阴极极限电流流过泵电池。在传感器的稳定运行期间，阳极极限电流在其中流动可选择的时间段，泵电池和/或能斯特测量单元接收由测量的检测电压或所建立的泵浦电流独立提供的至少一个电压脉冲，使传感器去极化。

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