Sensor used for determining parameters in combustion process of combustion engine has coating with structures having parameters in nanometer range

摘要

A sensor (1) has a coating (5) with structures having parameters in the nanometer range. An Independent claim is also included for a spark plug for a combustion engine having a coating with structures having parameters in the nanometer range. Preferred Features: The structures are formed in a catalytically active material, preferably an oxide of vanadium, cerium or cobalt. The coating is directly applied to the sensor. The sensor is a capacitive soot sensor with capacitor plates (2) electrically insulated using an insulator (3). The sensor may also be a pressure sensor. t