The oxygen sensor works similarly to a battery, with the element zirconia in the sensor acting like an electrolyte. The basic automobile oxygen sensor is the key feedback sensor in the EFI engine control system, and is the key part to control automobile exhaust emissions, reduce automobile environmental pollution and improve the fuel combustion quality of automobile engine. The oxygen sensor is installed on the engine exhaust pipe.
The oxygen sensor works similarly to a battery, with the element zirconia in the sensor acting like an electrolyte. The basic working principle is: Under certain conditions (high temperature and platinum catalysis), the oxygen concentration difference between the inside and outside of the Hao oxide is used to generate a potential difference, and the greater the concentration difference, the greater the potential difference. The content of oxygen in the atmosphere is 21%, the exhaust gas after concentrated combustion actually does not contain oxygen, and the exhaust gas generated after the combustion of the dilute mixture or the exhaust gas generated by the lack of fire contains more oxygen, but it is still much less than the oxygen in the atmosphere.
