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Surface acoustic waves propagating over a rotating piezoelectric half-space

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3 Author(s)
Huiyu Fang ; Dept. of Eng. Mech., Nebraska Univ., Lincoln, NE, USA ; Jiashi Yang ; Qing Jiang

Surface acoustic waves (SAW) propagating over a piezoelectric half-space rotating at a constant angular rate about a fixed axis are analyzed using the linear theory of piezoelectricity, including Coriolis and centrifugal forces. Rotation sensitivity, the rotation induced change of wave speed, is studied. The dependence of the rotation sensitivity on the orientation of the rotation axis and the orientation of the material is examined. Numerical results for polarized ceramics PZT-5H are presented to show the detailed characteristics of the rotation sensitivity. The implications of the numerical results are discussed for different applications.

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Ultrasonics, Ferroelectrics, and Frequency Control, IEEE Transactions on  (Volume:48 ,  Issue: 4 )