SENSOR FOR DETECTING A GAS IN AN ENVIRONMENT OF THE SENSOR

摘要

A sensor (1) for detecting a gas (G) in an environment (U) of the sensor comprises a transport layer (10) for transporting ions (I), wherein the transport layer (10) is conductive for the ions (I) as of a temperature, a first electrode (21) and a second electrode (22) which are arranged in a manner spaced apart from one another by the transport layer (10), and a heating device (30) for heating the transport layer (10) to said temperature. The sensor also has a controllable current or voltage source (40) for generating a control voltage for controlling a temperature of the heating device (30). The controllable current or voltage source (40) can be controlled in such a manner that a time-averaged voltage potential of zero volts or the voltage potential of the first electrode (21) is applied to the heating device (30).