Method and device for detecting the oxygen content in a gas to be measured
1998
A method for detecting the oxygen content in a measurement gas by means of at least one operating according to the Nernst principle concentration cell with an in communication with a measurement gas sensing electrode, with a standing with a reference gas volume in communication, connected to the measuring electrode via a solid electrolyte the reference electrode, between the reference electrode and the sensing electrode is preferably periodic pump current pulses are applied, characterized in that characterized reversed pulsed manner immediately after the end of each pumping current pulse the flow of current between the reference electrode and the measuring electrode in that one to the pumping current pulse reverse current flowing pulse predeterminable period between the reference electrode and the measuring electrode and a predeterminable current intensity (counter-current pulse) applies.
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