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.
Oxygen sensor is the key feedback sensor in the EFI engine control system which installed on the engine exhaust pipe to detect the oxygen concentration in the exhaust and the density of air-fuel ratio. The theoretical air-fuel ratio is carried out in the engine (14.7: 1) Combustion monitoring, and sending feedback signals to the computer,reducing automobile environmental pollution, and improving the quality of automobile engine fuel combustion.
