METHOD FOR OPERATING A SENSOR FOR DETECTING AT LEAST ONE PORTION OF A MEASUREMENT GAS COMPONENT HAVING BOUND OXYGEN IN A MEASUREMENT GAS

摘要

The invention relates to a method for operating a sensor (100) for detecting at least one portion of a measurement gas component having bound oxygen in a measurement gas, more particularly in an exhaust gas of an internal combustion engine. In the method, an electronic control unit (122), which at least has a first separate connection point (P1) for a first pump cell (112), a second separate connection point (P2) for a second pump cell (140), a connection point for a supply voltage (Vs) and a common connection point (COM), is connected to the sensor element (110) of the sensor (100), a measurement resistor (160) being provided in a fourth electrically conductive connection (146), a predefined voltage (U_COM) being present at the common connection point (COM), a capacity of the second pump cell (140) for generating a measurement signal (180) on the measurement resistor (160) is modified for a predefined amount of time by a control device (122).