APPARATUS FOR MEASURING OXYGEN CONCENTRATION AND METHOD OF PRODUCING THE APPARTUS

摘要

An oxygen concentration measuring apparatus having two electrodes (12, 13) formed on respective sides of a thin plate of solid electrolyte (11), one of the electrodes (12) being exposed to a diffusion chamber (16) having a diffusion aperture. The diffusion chamber (16) has a very small depth (h) and the diffusion aperture (24, 25) has a slit-like form extending laterally from the diffusion chamber (16), thereby attaining a good response characteristics of the oxygen concentration measuring apparatus. Disclosed also is a method of producing this oxygen concentration measuring apparatus.