Study on the equivalent circuit and coupled vibration for the longitudinally polarized piezoelectric ceramic hollow cylinders

2004 ◽  
Vol 275 (3-5) ◽  
pp. 859-875 ◽  
Author(s):  
Shuyu Lin
Keyword(s):  
Equivalent Circuit ◽  
Piezoelectric Ceramic ◽  
Coupled Vibration ◽  
Hollow Cylinders

Piezoelectric-Ceramic Cylinder Type Vibratory Gyroscope

1994 ◽  
Vol 360 ◽  
Author(s):  
T. Yoshida
Keyword(s):  
Equivalent Circuit ◽  
Optimum Design ◽  
Cylindrical Surface ◽  
Piezoelectric Ceramic ◽  
Vibration Mode ◽  
Cylinder Surface ◽  
Vibratory Gyroscope ◽  
Interdigital Electrodes ◽  
Adhesion Process ◽  
Ceramic Cylinder

AbstractA new equivalent circuit for the vibratory gyroscope and an analyzing and controlling method for the vibration mode axis of the vibrator have been studied. The vibrator of this gyroscope consists of a piezoelectric-ceramic cylinder. On its outer cylindrical surface, interdigital electrodes are formed. And these electrodes are used for poling, AC excitation as well as detection. In order to prevent some deviation of the performance of the gyroscope due to the adhesion process, these electrodes are directly printed on the cylinder surface.By changing the electrodes pattern and making a groove on the surface of the vibrator, the vibration mode axis can be easily controlled. Optimum design suited for demanded specifications can then be obtained.

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