Measurement of Vibration Mode of an Acoustic Vibration Element Using Giant Magnetostrictive Material

1995 ◽  
pp. 703-706
Author(s):  
H. Wakiwaka ◽  
T. Umezawa ◽  
K. Kuwahara ◽  
H. Kamata ◽  
T. Yoshikawa ◽  
...  
Keyword(s):  
Vibration Mode ◽  
Acoustic Vibration ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

scholarly journals Effect of Magnetic Bias on Acoustic Vibration Element Using Giant Magnetostrictive Material.

1992 ◽  
Vol 16 (2) ◽  
pp. 389-392 ◽  
Author(s):  
H. Wakiwaka ◽  
M. Nagumo ◽  
M. Iio ◽  
H. Yamada ◽  
M. Igarashi ◽  
...  
Keyword(s):  
Acoustic Vibration ◽  
Magnetic Bias ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

Improvement of flux density uniformity in giant magnetostrictive material for acoustic vibration element

1993 ◽  
Vol 29 (6) ◽  
pp. 2443-2445 ◽  
Author(s):  
H. Wakiwaka ◽  
T. Umezawa ◽  
H. Yamada ◽  
K. Kobayashi ◽  
T. Yoshikawa
Keyword(s):  
Flux Density ◽  
Acoustic Vibration ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

Modal Analysis of a New Solid Micro-Gyroscope with Bulk Giant Magnetostrictive Material (GMM) Resonator

2011 ◽  
Vol 148-149 ◽  
pp. 301-304
Author(s):  
Xi Hui Du ◽  
Feng Cui ◽  
Xiao Sheng Wu ◽  
Wu Liu ◽  
Wei Ping Zhang ◽  
...  
Keyword(s):  
Optimization Design ◽  
Simple Structure ◽  
Vibration Mode ◽  
Angular Rate ◽  
Device Structure ◽  
Mems Gyroscope ◽  
Magnetostrictive Material ◽  
First Order ◽  
Giant Magnetostrictive Material ◽  
Magnetostrictive Strain

Employing unique advantage of giant magnetostrictive strain of giant magnetostrictive material (GMM) for improving reference vibration amplitude, a novel bulk GMM solid MEMS gyroscope, which has small and simple structure and is capable of detecting 2-axis angular rate with improved sensitivity, is proposed. The device structure and operation principle of the gyroscope are presented. Using finite element method (FEM), modal analyses, for whole solid GMM cube and for bulk GMM cube composed of multilayer GMM plates, are conducted. The results show that the fourth order vibration mode for the former and the first order vibration mode with lower frequency of dozens of KHz for the latter were found to meet the working vibratory mode of the gyro sensor. This work of the paper provides theory foundation for structural optimization design and fabrication of the microgyroscope.

Effect of Magnetic Bias on Acoustic Vibration Element Using Giant Magnetostrictive Material

1993 ◽  
Vol 8 (2) ◽  
pp. 107-111 ◽  
Author(s):  
H. Wakiwaka ◽  
M. Nagumo ◽  
M. Iio ◽  
H. Yamada ◽  
M. Igarashi ◽  
...  
Keyword(s):  
Acoustic Vibration ◽  
Magnetic Bias ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material

scholarly journals Development of a Direct-Drive Servovalve Using a Giant Magnetostrictive Material.

1993 ◽  
Vol 59 (563) ◽  
pp. 2112-2115
Author(s):  
Takahiro Urai ◽  
Takahiro Sugiyama ◽  
Takashi Nakamura ◽  
Katsuhisa Jinbo
Keyword(s):  
Direct Drive ◽  
Magnetostrictive Material ◽  
Giant Magnetostrictive Material
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