METHOD, APPARATUS, SYSTEM, COMPUTER PROGRAM AND COMPUTER PROGRAM PRODUCT FOR OPERATING A SENSOR ELEMENT FOR RECORDING A GAS CONCENTRATION

摘要

The sensor element comprises a reference electrode (40) and a measuring electrode (50) which comprises at least one mixed-potential electrode which is sensitive to a gas, the concentration of which is to be recorded. The sensor element (20) also has a transport layer (60) for transporting ions, which transport layer is conductive for the ions above a predefined temperature and is arranged in such a manner that said layer is coupled to the reference electrode (40) and to the measuring electrode (50). In a preparation phase, a current is impressed between the measuring electrode (50) and the reference electrode (40) on the basis of a provided measurement variable which is representative of an oxygen concentration in the gas space. In a measuring phase following the preparation phase, preferably in a measuring phase immediately following the preparation phase, a measurement variable representative of the gas concentration in the gas space is recorded between the measuring electrode (50) and the reference electrode (40).