Ultrasonic transducer

Abstract

An ultrasonic transducer is provided. The ultrasonic transducer includes a transducing layer. The transducing layer is used to transmit and receive an ultrasonic wave, wherein the transducing layer includes a plurality of transducing parts and a plurality of spacing parts. The transducing parts are separated from each other by the spacing parts. The transducing parts include a piezoelectric material, and the spacing parts include an adhesive material, a plurality of hollow glass spheres, and a plurality of micron and nanoscale powders. The hollow glass spheres and micron and nanoscale powder are dispersed in the adhesive material, and a particle size of the hollow glass spheres is between

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