Gas sensor
April 1, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesElectrochemical gas sensor Electrochemical device Oxygen sensor Heater-built-in oxygen sensor Method of measuring a gas component and sensing device for measuring the gas component Method for measuring nitrogen oxide Limit current type oxygen concentration detection having oxygen supply/exhaust function Patent #: 6096187 InventorsAssigneeApplicationNo. 10114000 filed on 04/01/2002US Classes:204/427, With gas reference material204/426, Planar electrode surface73/23.32, Air-fuel ratio204/406, With significant electrical circuitry or nominal computer device204/425, With impressed current means73/31.05, Detector detail205/781, Including nitrogen oxide (e.g., gaseous nitrogen dioxide, dissolved sodium nitrate, etc.)205/784.5In combustible gas (e.g., air/fuel mixture for internal combustion engine, etc.)ExaminersPrimary: Olsen, Kaj K.Attorney, Agent or FirmForeign Patent References
International ClassG01N027/41AbstractA 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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