Auto Oxygen Sensor Epica 9042907 for Chevrolet
Production introduction:
many modern oxygen sensors do not need outside air as a reference.
Rather, a reference pump current is applied to the Nernst cell, which
simulates the influence of the air. In these sensors, a gap in the
element for the reference air is not required. Therefore, the sensor
element requires less volume and heating it up requires less time and
energy. Furthermore, operating without reference air makes the sensor
less sensitive to contamination.
Oxygen sensor is the standard configuration of automobile. It uses ceramic sensitive element to measure the oxygen potential in the exhaust pipe of automobile, and calculates the corresponding oxygen concentration according to the principle of chemical balance, so as to monitor and control the combustion air-fuel ratio, so as to ensure the product quality and exhaust emision up to the standard.
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