Ultrasonic transducer for use in a fluid medium

摘要

An ultrasonic transducer for use in a fluid medium is proposed. The ultrasonic transducer includes at least one transducer core which has at least one acoustic/electric transducer element, in particular a piezoelectric transducer element. The ultrasonic transducer furthermore includes at least one housing, at least one housing opening being at least partially sealed against the fluid medium with the aid of a sealing film which is connected to the transducer core. The sealing film has at least one expansion deformation which is configured to permit a relative movement between the transducer core and the housing.

主权项

1. An ultrasonic transducer for use in a fluid medium, comprising:
at least one transducer core which has at least one piezoelectric transducer element; and at least one housing, the at least one housing having at least one housing opening at least partially sealed against the fluid medium with the aid of a sealing film which is connected to the at least one transducer core, the sealing film having at least one expansion deformation, the at least one expansion deformation being configured to permit a relative movement between the at least one transducer core and the at least one housing; wherein at least one annular gap is provided between the at least one housing and the at least one transducer core, the at least one gap being at least partially filled with at least one decoupling element, the at least one decoupling element being configured to dampen a transmission of structure-borne noise between the at least one housing and the at least one transducer core.