The invention relates to an electro-acoustic device (5) comprising:-an ultrasonic transducer (15) comprising a piezoelectric substrate (10) and a first electrode (30) and a second electrode (35) which are in contact with the piezoelectric substrate, and-a carrier (10) on which the transducer is fixed and which is acoustically coupled, and the first and second electrodes are at least partially sandwiched between the piezoelectric substrate and the carrier, the device being configured to generate an ultrasonic surface wave (W) when a current passes through the first and second electrodes, the ultrasonic surface wave (W) propagating in the carrier at a distance from the transducer.
一种电声装置(5),包括:‑超声波换能器(15),所述超声波换能器(15)包括压电衬底(10)以及与所述压电衬底接触的第一电极(30)和第二电极(35),以及‑载体(10),所述换能器固定在所述载体上并与所述载体声波耦合,并且所述第一电极和所述第二电极至少部分地夹在所述压电衬底与所述载体之间,所述装置被配置为当电流通过所述第一电极和所述第二电极时产生超声表面波(W),所述超声表面波(W)在与所述换能器相距一定距离的所述载体中传播。
Electroacoustic device
电声装置
2022-06-14
Patent
Elektronische Ressource
Chinesisch
IPC: | B06B GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL , Erzeugen oder Übertragen mechanischer Schwingungen allgemein / B08B Reinigen allgemein , CLEANING IN GENERAL / B60S SERVICING, CLEANING, REPAIRING, SUPPORTING, LIFTING, OR MANOEUVRING OF VEHICLES, NOT OTHERWISE PROVIDED FOR , Warten, Reinigen, Instandsetzen, Unterstützen, Anheben oder Rangieren von Fahrzeugen, soweit nicht anderweitig vorgesehen |