Vibration mode analysis of piezoelectric-ceramic cylinder vibratory gyroscopes with interdigital electrodes

1996 ◽  
Vol 79 (7) ◽  
pp. 53-60
Author(s):  
Hiroshi Abe ◽  
Tetsuo Yoshida ◽  
Kiyoshi Nakamura
Keyword(s):  
Piezoelectric Ceramic ◽  
Vibration Mode ◽  
Mode Analysis ◽  
Vibratory Gyroscopes ◽  
Interdigital Electrodes ◽  
Ceramic Cylinder

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.

Stress and Vibration Analysis of Motor Back Plate in HDD

2011 ◽  
Vol 275 ◽  
pp. 97-100 ◽  
Author(s):  
Geun Sub Heo ◽  
Oh Hyun Kang ◽  
Cheol Woo Park ◽  
Sang Ryong Lee ◽  
Choon Young Lee
Keyword(s):  
Resonant Frequency ◽  
High Speed ◽  
Vibration Mode ◽  
Hard Disk Drives ◽  
Mode Analysis ◽  
Design Parameters ◽  
Disk Drives ◽  
Ansys Software ◽  
Back Plate ◽  
Plate Shape

In the present study, we have simulated stress characteristics and vibration modes in the back plate of head-stack driving motor of 2.5 inch small sized hard disk drives (HDDs). The magnets in head-stack driving motor have large magnetic fields, and therefore, the resulting large force may induce fracture and deformation in the back plate of the motor. Since the high-speed motion of head-stack motor generates high frequency vibration, we analyzed the vibration mode to avoid resonant frequency. ANSYS software was used in this study to check the deformation of back plate with the following design parameters: thickness of plate, the number of support beams, and the width of support beams. From the vibration mode analysis, we obtained a stable plate shape whose operating frequency is off the resonant frequency.

scholarly journals 120 Vibration Mode Analysis of Thin Film Resonator under Laser Beam Excitation

2001 ◽  
Vol 2001.50 (0) ◽  
pp. 39-40
Author(s):  
Toshihiro Kobayashi ◽  
Jun Ohsawa ◽  
Naohiro Yamaguchi ◽  
Tamio Hara
Keyword(s):  
Thin Film ◽  
Laser Beam ◽  
Vibration Mode ◽  
Mode Analysis ◽  
Beam Excitation

Detection of missing fastener based on vibration mode analysis using fiber Bragg grating (FBG) sensors

2003 ◽  
Author(s):  
Akiyoshi Shimada ◽  
Kei Urabe ◽  
Yoshihiro Kikushima ◽  
Jun Takahashi ◽  
Kazuro Kageyama
Keyword(s):  
Fiber Bragg Grating ◽  
Vibration Mode ◽  
Mode Analysis ◽  
Bragg Grating ◽  
Fbg Sensors

Vibration Mode Analysis for a Suspension Bridge by Using Low-Frequency Cantilever-Based FBG Accelerometer Array

2021 ◽  
Vol 70 ◽  
pp. 1-8
Author(s):  
Kok-Sing Lim ◽  
Muhammad Khairol Annuar Zaini ◽  
Zhi-Chao Ong ◽  
Fairul Zahri Mohamad Abas ◽  
Muhammad Aizi Bin Mat Salim ◽  
...  
Keyword(s):  
Vibration Mode ◽  
Low Frequency ◽  
Suspension Bridge ◽  
Mode Analysis

Temperature Dependence of Zero Offset of Piezoelectric-Ceramic Cylinder Vibratory Gyroscope

1996 ◽  
Vol 35 (Part 1, No. 9B) ◽  
pp. 5031-5033 ◽  
Author(s):  
Hiroshi Abe ◽  
Tetsuo Yoshida ◽  
Hiromichi Kobayashi ◽  
Kiyoshi Nakamura
Keyword(s):  
Temperature Dependence ◽  
Piezoelectric Ceramic ◽  
Vibratory Gyroscope ◽  
Zero Offset ◽  
Ceramic Cylinder
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