Abstract：
:We study thickness-shear vibration of a quartz plate connected to two piezoelectric ceramic plates with initial deformations caused by a biasing electric field. The theory for small deformations superposed on finite biasing deformations in an electroelastic body is used. It is shown that the resonant frequencies of the incremental thickness-shear vibration of the quartz plate vary with the biasing electric field. The biasing electric field induced frequency shift depends linearly on the field. Therefore this effect may be used for electric field sensing. The dependence of the electric field induced frequency shift on various material and geometric parameters is examined. When the electric field is of the order of 100V/mm, the relative frequency shift is of the order of 10(-5). The case when the piezoelectric plates are replaced by piezomagnetic plates is also investigated for magnetic field sensing, and similar results are obtained.
journal_name
Ultrasonicsjournal_title
Ultrasonicsauthors
Zhou Y,Chen W,Yang J,Du Jdoi
10.1016/j.ultras.2010.07.002subject
Has Abstractpub_date
2011-02-01 00:00:00pages
131-5issue
2eissn
0041-624Xissn
1874-9968pii
S0041-624X(10)00095-8journal_volume
51pub_type
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