METHOD FOR CORRECTING AN OFFSET FOR A PRESSURE DIFFERENCE MEASURED BY A DIFFERENTIAL PRESSURE SENSOR WHICH IS ARRANGED IN AN AIR DUCT

摘要

The present invention relates to a method (116) for correcting an offset (100) for a pressure difference (82) measured by a differential pressure sensor (80) situated in an air duct (46). The offset (100) is computed using an output signal (96) of pressure sensors (88, 90, 94), the method comprising: a step (118) of transferring the air duct (46) into a predetermined operating situation (110) in which a predetermined pressure difference (82) is considered to be applied to the differential pressure sensor (80); a step (120) of measuring a level of the output signal (96) in the predetermined operating situation (110); and a step (122) of computing the offset (100) based on the measured level of the output signal (96).