The oxygen sensor uses ceramic sensitive components to measure the oxygen potential in various heating furnaces or exhaust pipes. The corresponding oxygen concentration is calculated by the chemical equilibrium principle to monitor and control the combustion air-fuel ratio in the furnace to ensure product quality and exhaust emission standards. Measuring components are widely used in various types of coal combustion, oil combustion, gas combustion and other furnace atmosphere control.

The oxygen sensor is used for electronically controlling the fuel injection device's feedback control system to detect the concentration of oxygen in the exhaust gas and the air-fuel ratio, and to monitor the combustion of the theoretical air-fuel ratio (14.7:1) in the engine and deliver it to the computer. Feedback signal.