SENSOR ELEMENT HAVING MEANS FOR REDUCING THE DIFFUSION CROSS-SECTION

摘要

A sensor element which is used for determining a property of a measuring gas, e.g., for determining the concentration of a gas component in the measuring gas, has at least one electrode applied to one solid electrolyte, the electrode being in contact with the measuring gas via a diffusion path in which a diffusion barrier is situated. A means is provided in the region of the side of the diffusion barrier facing away from the electrode, the means reducing the diffusion cross section in the region of the side of the diffusion barrier facing away from the electrode.