How NOx sensors work on SCR catalytic converters

Obsah článku

• Úvod
  • Design of the NOx Sensor
  • Working Principle
  • Examples of Use
  • Internal Structure
  • 1. Nernst Cell – Oxygen Removal
  • 2. Nernst Cell – NOx Separation/Reduction
  • Summary and Key Mechanisms
  • Principle of Electrochemical Decomposition
  • How is Electric Current Generated?
  • Conversion of Current to ppm NOx
  • Summary of Electrochemical Decomposition
  • Voltage in the "Electrolytic Chamber" of the NOx Sensor
  • Voltage Control in the Electrochemical Cell
  • Typical Voltage Values
  • Dependence of Electric Current Generation on Voltage
  • Why is the Voltage Controlled and Not Fixed?
  • Summary of Current Generation
  • Active Voltage Control and Feedback
  • How Real-Time Measurement Works
  • Summary of Active Voltage Control