Sensor i.e. particulate sensor for detecting e.g. soot, in exhaust gas from exhaust system of diesel engine vehicle, has substrate including heating region with heating element for heating heating region and/or comb electrodes

摘要

The sensor (10) has a substrate (16) including a heating region (18) and a support region (20), where the heating region and the support region are separated partially through a heat insulator (24). The heating region includes two comb electrodes (12, 14) for detecting resistive particles, and a heating element (22) for heating the heating region and/or the electrodes, where the heat insulator is formed as an air gap, and the sensor is arranged in an exhaust line of a vehicle.