Ultrasonic transducer has attenuation capping portion that is interlaced with metal or metal oxide particles at room temperature, such that cross-linking encapsulation is conditioned with micro hollow spheres

摘要

The ultrasonic transducer (1) has an ultrasonic measurement signals producing sense element (2) that radiates ultrasound measurement signals over an adjustment layer (3) and/or a membrane (4), and receives the reflected ultrasound measurement signals at a reflection surface. An attenuation capping portion (6) is provided in a back space (5) of sense element with respect to radiation direction. The attenuation capping portion is interlaced with metal or metal oxide particles (15) at room temperature, such that cross-linking encapsulation is conditioned with micro hollow spheres (16).