Electrochemical gas 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
ApplicationNo. 10114000 filed on 04/01/2002
US 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 Firm
Foreign Patent References
AbstractA 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.