Pressure sensor for combustion chamber of vehicle internal combustion engine, has steel sensor membrane whose rear side includes thin metallic layer receiving piezo-resistive measuring units connected by transmission units

摘要

The sensor has a sensor membrane (7) whose rear side (7.2) includes a thin metallic layer receiving piezo-resistive measuring units connected by transmission units (11), where the membrane is steel membrane. The transmission units are connected to a processing unit, and signals detected by the sensor are provided to the processing unit. A sensor head has large diameter and a sensor collar has reduced diameter.