Process for calibrating a sensor element for a planar broadband lambda probe for determining the oxygen concentration of I.C. engine exhaust gases, comprises measuring the thickness of the diffusion barrier during completion of the element

摘要

Process for calibrating a sensor element for a limiting current probe for determining a gas component in a gas mixture comprises measuring the thickness of the diffusion barrier (21) during completion of the sensor element so that a limiting current on the reference gas, preferably air, lying above a prescribed value flows via a pump cell and is reduced after post-sintering the sintered sensor element and inserting a flux agent into the diffusion barrier.