ZIRCONIA OXYGEN SENSOR -- AN EQUIVALENT CIRCUIT MODEL

The zirconia exhaust gas oxygen sensor is a key component in closed loop engine emissions control systems. An equivalent circuit model of the sensor is derived from fundamental electrochemical principles. In this model, sensor electrode resistance and capacitance are separated from the zirconia electrolyte resistance. Numerical examples are given to show how the equivalent circuit can be used to model both steady state and transient characteristics of sensors.

  • Supplemental Notes:
    • Published in HS-029 044 (SAE-SP-458), "Sensors for Automotive Systems," Warrendale, Pennsylvania, 1980, pp 23-37. Presented at SAE Congress and Exposition, Detroit, 25-29 February 1980.
  • Corporate Authors:

    Society of Automotive Engineers

    400 Commonwealth Drive
    Warrendale, PA  USA  15096
  • Authors:
    • FLEMING, W J
  • Publication Date: 1980

Media Info

Subject/Index Terms

Filing Info

  • Accession Number: 00322873
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: SAE 800020, HS-029 047
  • Files: HSL, TRIS
  • Created Date: Jan 19 1984 12:00AM