METHOD FOR PRODUCING A PRESSURE SENSOR THAT IS ROBUST WITH RESPECT TO ICING, AND PRESSURE SENSOR THAT IS ROBUST WITH RESPECT TO ICING

摘要

The invention relates to a pressure sensor that is robust with respect to icing and to a method for producing a pressure sensor (1) of this type, comprising the steps: providing a carrier substrate (2), through which a pressure channel (23) passes; arranging a pressure sensor element (3) on a first side (21) of the carrier substrate (2) over the pressure channel (21); providing a first housing part (11), which has a cavity (15) and a pressure port (6), which is connected to the cavity (15); arranging the first housing part (11) on a second side (22) of the carrier substrate (2) facing away from the pressure sensor element (3), in such a way that the cavity (15) forms a pressure chamber (13) of the pressure sensor (1), which pressure chamber is sealed except for the access via the pressure port (6) and the pressure channel (23). The aim of the invention is to make the pressure sensor more robust with respect to icing. This aim is achieved, according to the invention, in that a physical variable (V_k), which represents a volume of a maximum amount of a condensate (3) forming in the pressure chamber (13) during normal operation, is determined in empirical tests and that, in accordance with the physical variable (V_k) thus determined, at least one geometric parameter of the pressure chamber (13) is specified in such a way that, depending on the orientation of the pressure sensor (1) relative to the effective direction of gravity (G), a condensate (30) forming in the pressure chamber (13) during operation does not enter the pressure channel (23).