Analysis of comb transducers with sliding teeth

Eugene J. Danicki (1)

1 PAN - Polska Akademia Nauk = Polish Academy of Sciences = Académie polonaise des sciences

Ultrasonic comb transducer generates surface acoustic waves on an elastic substrate by periodic traction exerted by its vibrating periodic teeth on the substrate surface. In this paper, the comb teeth are actually sliding elastic spacers between an acoustic bu®er and the substrate. The incident wave in acoustic bu®er scatters on periodic spacers producing interface waves in the system which transform into Rayleigh waves at the transducer edges.

Mots clés: interface waves; Bragg re°ection; ultrasonic transducers

Domaines: Mécanique des solides [physics.class-ph]; Mécanique des solides [physics.class-ph]

Eugene J. Danicki. Analysis of comb transducers with sliding teeth. European Journal of Mechanics - A/Solids, 2011, ⟨10.1016/j.euromechsol.2011.03.011⟩. ⟨hal-00753959⟩