Gas sensor

Chemistry: electrical and wave energy – Apparatus – Electrolytic

Reexamination Certificate

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C204S426000, C073S023320

Reexamination Certificate

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06936149

ABSTRACT:
A gas sensor for determining a physical quantity of a gas component, e.g., in an exhaust gas of an internal combustion engine, including a sensor element which contains at least one electrochemical cell. The electrochemical cell includes a first electrode and a second electrode that are arranged at a distance on at least one solid electrolyte, the second electrode is arranged in a reference gas space. A third electrode which is in contact with a gas located in the gas space is provided. The gas component may be exchanged between the gas space and the reference gas space using a voltage applied between the second electrode and the third electrode.

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patent: 4909922 (1990-03-01), Kato et al.
patent: 5672811 (1997-09-01), Kato et al.
patent: 6036841 (2000-03-01), Kato et al.
patent: 6096187 (2000-08-01), Mizoguchi et al.
patent: 198 15 700 (1999-10-01), None

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