Patent ID: 8627729
Filing Date: 2014-01-14
Classification: G01F,G10K,Y10T

Abstract:
1. A method for manufacturing an ultrasonic transducer for use in a fluid medium, the method comprising: joining directly or indirectly at least one piezoelectric transducer element to at least one matching member for promoting vibration coupling between the at least one piezoelectric transducer element and the fluid medium; wherein the at least one piezoelectric transducer element is bonded to the at least one matching member by an adhesive agent, wherein the at least one matching member has at least one porous molding of a polymer, wherein the polymer includes at least one polyimide, wherein at least one seal is applied, and wherein the seal at least partially seals a side of the at least one porous molding facing the piezoelectric transducer element, wherein the seal is provided to at least largely prevent the adhesive agent from penetrating into the at least one matching member.