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压电声表面波,顾名思义,就是在压电固体材料表面产生和传播的声学波。其分为五种:①瑞利波:局限于表面传播,质点运动有两个位移分量,共一是与表面相垂直,共二是与表面相平行,轨迹为椭圆形,振幅随深入介质内部按指数衰减。②乐甫波:在具有薄层结构的压电基片上传播的表面波,质点运动在薄层的
Piezoelectric SAW, as its name implies, is an acoustic wave that is generated and propagates on the surface of piezoelectric solid materials. It is divided into five types: Rayleigh wave: confined to the surface of the spread, the particle movement has two displacement components, a total of vertical with the surface, a total of two parallel with the surface, the trajectory is oval, amplitude with the depth of internal media According to the index decay. ② Lok Fu wave: in the thin layer structure of the piezoelectric substrate on the spread of surface waves, particle motion in the thin layer