SENSOR ELEMENT FOR LIMIT CURRENT SENSORS FOR THE DETERMINATION OF THE VALUE-LAMBDA OF GAS MIXTURES.

摘要

A SENSOR ELEMENT IS PROPOSED FOR WIDE-BAND SENSORS, FOR THE DETERMINATION OF THE LAMBDA VALUE IN GAS MIXTURES, THAT CAN BE DONE IN THE CERAMIC SHEET PRINTING TECHNIQUE, AND THAT IN THE DIFFUSION SLOT (7), BEHIND OF A PAIR OF PUMP ELECTRODES (8,8``), WHICH ARE ARRANGED ON BOTH SIDES OF THE DIFFUSION SLOT (7), PRESENT A NERNST ELECTRODE (9), WITH THE FUNCTION OF AN EXHAUST GAS ELECTRODE. BECAUSE OF THE DISPOSAL OF THE NERNST ELECTRODE (9), THE PUMP CELL, FORMED BY THE INTERNAL ELECTRODES OF THE PUMP (8,8``), IS EFFECTIVELY PROTECTED AGAINST OVERLOADS, AND A DISTORTION OF THE SENSOR SIGNAL.