Title :
Gyroscopic effect for SAW in common piezoelectric crystals
Author :
Biryukov, Sergey V. ; Schmidt, Hagen ; Weihnacht, Manfred
Author_Institution :
IFW Dresden, Dresden, Germany
Abstract :
In the present work, using the well-known numerical procedure for SAW calculation in arbitrary crystals the gyroscopic effect is investigated. To take into account the medium rotation the Coriolis and centrifugal forces are introduced into the piezoelectric medium equations of motion. As a result of the standard procedure, the SAW velocity is calculated as a function of the medium rotation rate about each coordinate axis. A shift of such velocity due to rotation is determined for isotropic Al, STX-quartz, 128°YX-LiNbO3, YZ-LiNbO3, X112°Y-LiTaO3, and Z-cut of AlN substrates.
Keywords :
Coriolis force; aluminium; aluminium compounds; lithium compounds; piezoelectric materials; quartz; surface acoustic waves; 128°YX-LiNbO3; Al; AlN; AlN substrates; Coriolis forces; LiNbO3; LiTaO3; SAW velocity; STX-quartz; X112°Y-LiTaO3; YZ-LiNbO3; aluminium; centrifugal forces; gyroscopic effect; medium rotation; piezoelectric crystals; piezoelectric medium equations of motion; surface acoustic waves; Boundary conditions; Crystalline materials; Crystals; Electric potential; Electrostatics; Equations; Frequency; Surface acoustic waves; Tensile stress;
Conference_Titel :
Ultrasonics Symposium (IUS), 2009 IEEE International
Conference_Location :
Rome
Print_ISBN :
978-1-4244-4389-5
Electronic_ISBN :
1948-5719
DOI :
10.1109/ULTSYM.2009.5441457
