Method for determining accuracy of gas sensor in exhaust systems of vehicles, involves operating gas sensor by measuring gas, that is air and accuracy of gas sensor is determined on basis of oxygen concentration in air by scanning element

摘要

The method involves operating a gas sensor (1) by a measuring gas, which is an air. The accuracy of the gas sensor is determined on the basis of the oxygen concentration in the air by a scanning element (2). The air is brought into a chamber (23) between the scanning element and a covering (3) during the operation of the gas sensor. The air is flown into the chamber and outside from the chamber.