Method of making oxygen sensor

摘要

Oxygen sensor specifically adapted for use in an industrial air/fuel control system provides an ability to measure actual oxygen content quantitatively in industrial situations where off-stoichiometric air/fuel control is desired. The sensor is quite simple and is easy to use since it provides accurate reproducible readings from sensor to sensor and for long periods. The leads to the solid electrolyte disc are of the same material as the electrodes and extend to the remote end of the sensor so as to eliminate dissimilar material junctions. Felted ceramic discs applied to the wet paste electrodes before firing serve to filter the gases contacting the sensor and act as wicks for permitting uniform dispersion of chloroplatinic acid to the paste electrodes.