Ultrasonic energy transducer with continuously changed acoustic impedances

The invention relates to an ultrasonic energy transducer with continuously changed acoustic impedances, which comprises a bake lining and a piezoelectric material layer which are sequentially overlapped, wherein an acoustic impedance continuous change layer is arranged between the piezoelectric mate...

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Bibliographische Detailangaben
1. Verfasser: YUAN JIANREN
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:The invention relates to an ultrasonic energy transducer with continuously changed acoustic impedances, which comprises a bake lining and a piezoelectric material layer which are sequentially overlapped, wherein an acoustic impedance continuous change layer is arranged between the piezoelectric material layer and a working medium. The ultrasonic energy transducer with continuously changed acoustic impedances can realize the acoustic matching among different acoustic impedances by only one acoustic impedance continuous change layer so as to ensure that the structure of the ultrasonic energy transducer is greatly simplified, and multiple reflection among structure layers does not exist, thereby improving the emission efficiency of acoustic energy.