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Smart NOx Sensors: Functions and Benefits

Use technical content to support OE cross-reference, diagnostics awareness, and buyer confidence before the RFQ stage.

NOx sensor technical overview diagram with sensor probe ECU and connector

A critical diesel emissions component used to support regulatory compliance.

Introduction

A NOx sensor, or nitrogen oxide sensor, is used to detect nitrogen oxide emissions from diesel vehicles and support compliance with emissions regulations. Most engines use two NOx sensors: one upstream and one downstream.

As emissions regulations become stricter, accurate NOx detection has become increasingly important. The NOx sensor downstream of the SCR catalyst is used to monitor catalyst performance. Many NOx sensors can also measure O2 concentration, similar to a wide-range air-fuel sensor.

Application

Ce capteur peut mesurer simultanément la concentration de NOx et de NOx dans les gaz d'échappement. En permettant le contrôle des NOx dans les applications à mélange pauvre et diesel, le capteur contribue à une meilleure économie de carburant et à un air plus pur.

Caractéristiques

  • Mesure simultanée en temps réel des NOx et O2 concentration
  • Réponse rapide
  • La conception étanche entièrement scellée ne nécessite pas d'air de référence externe
  • Haute résistance à l'eau
  • Résistance élevée à la toxicité
  • Activation anticipée

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