| 摘要 |
<p>This sensor, which is of the oxygen pump type, makes it possible to generate an electric signal representative of the oxygen content of a gas, linearly dependent on this oxgen content, made of a solid electrolyte plate (3), one of whose faces is partly covered by a cathode (1) impervious to oxygen to be brought into the presence of the said gas, and whose other face is covered by an anode (2) to be brought into the presence of a reference gas. Under the effect of the difference in potential prevailing between the two electrodes (1, 2), there appears at the surface of the solid electrolyte an area (1) in which the molecular oxygen contained in the said gas is transformed into negative ions. The electrons captured by the oxygen during this transformation produce the said electric signal.</p> |
