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What is Nitrogen Oxygen Sensor?

2025-04-18

The Nitrogen Oxygen Sensor is a core component of modern diesel vehicle emission systems. Like a tireless environmental guardian, it constantly monitors the nitrogen oxide content in exhaust gas. 

Nitrogen Oxygen Sensor

In the engine emission control system, this seemingly small device plays an irreplaceable role, ensuring that the vehicle meets the power requirements while also meeting the increasingly stringent environmental regulations.

The most notable feature of the Nitrogen Oxygen Sensor is its double-layer structure design. This part uses a special yttria-stabilized zirconia ceramic material. This specially treated ceramic has good oxygen ion conductivity under high temperature conditions.

When high-temperature exhaust gas passes through the Nitrogen Oxygen Sensor, its core ceramic element will produce a subtle electrochemical reaction. This reaction can accurately distinguish between oxygen and nitrogen oxide molecules, and convert the test results into electrical signals and transmit them to the vehicle ECU.

In actual applications, the Nitrogen Oxygen Sensor has demonstrated reliable reliability. Its special material can withstand the harsh working environment of diesel vehicles and maintain measurement accuracy after tens of thousands of kilometers of continuous use. Many modern diesel vehicles install it in multiple locations on the exhaust pipe to form a complete emission monitoring network. From city buses to long-distance freight trucks, from construction machinery to ship power, Nitrogen Oxygen Sensor is playing an important role in controlling mobile pollution sources around the world, becoming an important link between environmental regulations and engine technology.


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