Abstract: An ultrasonic sensor (1) comprises a housing (2) and a diaphragm (4), to which a piezo-electric element (6) is fastened, and an electric connector region (8) which has an earth connector (24). A layer made from an electrically non-conducting material is arranged between the diaphragm (4) and the piezo-electric element (6), and the diaphragm (4) is connected to the earth connector (24) in an electrically conducting manner.

Abstract: The invention relates to an ultrasonic sensor device (1) for a motor vehicle, comprising an ultrasonic sensor (2), which comprises a pot-shaped membrane (21) for emitting and/or receiving ultrasonic signals, comprising a decoupling ring (6), which is arranged to fit around the membrane (21) in contact with an outer circumference (34) of the membrane (21), and comprising a stiffening element (13), which is arranged around the decoupling ring (6), wherein the decoupling ring (6) comprises a circumferential first radial decoupling region (32) which is in contact with the outer circumference (34) of the membrane (21) as well as a second radial decoupling region (33) with an axial face (37) which is in contact with an axial face (38) of the stiffening element (13).

Abstract: An ultrasonic sensor (1) comprises a housing (2) and a diaphragm (4), to which a piezo-electric element (6) is fastened, and an electric connector region (8) which has an earth connector (24). A layer made from an electrically non-conducting material is arranged between the diaphragm (4) and the piezo-electric element (6), and the diaphragm (4) is connected to the earth connector (24) in an electrically conducting manner.

Abstract: The invention relates to an ultrasonic sensor device (1) for a motor vehicle, comprising an ultrasonic sensor (2), which comprises a pot-shaped membrane (21) for emitting and/or receiving ultrasonic signals, comprising a decoupling ring (6), which is arranged to fit around the membrane (21) in contact with an outer circumference (34) of the membrane (21), and comprising a stiffening element (13), which is arranged around the decoupling ring (6), wherein the decoupling ring (6) comprises a circumferential first radial decoupling region (32) which is in contact with the outer circumference (34) of the membrane (21) as well as a second radial decoupling region (33) with an axial front side (37) which is in contact with an axial front side (38) of the stiffening element (13).

Abstract: The invention relates to a sensor (12) for a short-range detection system and/or parking system of a motor vehicle, especially an ultrasound sensor. The sensor comprises a pot-shaped housing (10), whereby the base thereof (14) is embodied as an oscillating membrane. The housing comprises a coating on at least the outer side. The invention is characterized in that the coating is made of powder (18) which is weather-proof, which can be coated and which has no or no significant negative influence upon the oscillation behavior of the membrane. The invention also relates to a method for the production of this type of sensor.

Abstract: The present disclosure relates to an ultrasonic sensor used, for example, in the form of an ultrasonic vehicle parking aid provided with a sensor having an ultrasonic membrane and optionally a board provided with mounted required electronics and a coupling for an electric plug-in connection which are arranged therein, wherein said coupling is placed on a separate coupling housing and the sensor housing is combinable with different coupling housings.

Abstract: The present disclosure relates to an ultrasonic sensor used, for example, in the form of an ultrasonic vehicle parking aid provided with a sensor having an ultrasonic membrane and optionally a board provided with mounted required electronics and a coupling for an electric plug-in connection which are arranged therein, wherein said coupling is placed on a separate coupling housing and the sensor housing is combinable with different coupling housings.

Abstract: The present disclosure relates to a holder for a sensor, particularly an ultrasound sensor for a parking assist system, including a sleeve-shaped body, into which the sensor can be inserted via an insertion opening, and which a fastening section for fastening the holder to a vehicle part. A cage is provided between the sleeve-shaped body and the sensor. This cage fixes the sensor inside the sleeve-shaped body both in the axial direction as well as in the radial direction.