Surface acoustic waves propagating over a rotating piezoelectric half-space

Surface acoustic waves (SAW) propagating over a piezoelectric half-space ro tating at a constant angular rate about a fixed axis are analyzed using the linear theory of piezoelectricity, including Coriolis and centrifugal forc es. Rotation sensitivity, the rotation induced change of wave speed, is stu died. The dependence of the rotation sensitivity on the orientation of the rotation axis and the orientation of the material is examined. Numerical re sults for polarized ceramics PZT-SH are presented to show the detailed char acteristics of the rotation sensitivity. The implications of the numerical results are discussed for different applications.