Construction of a low-frequency flat-type vibratory gyroscope using the combination of H-type and 3-arm-type vibrators

被引:1
|
作者
Sugawara, S [1 ]
Aizawa, H [1 ]
机构
[1] Ishinomaki Senshu Univ, Fac Sci & Engn, Ishinomaki 9868580, Japan
关键词
vibratory gyroscope; angular rate sensor; H-type vibrator; 3-arm-type vibrator; finite-element analysis; resonance frequency;
D O I
10.1143/JJAP.41.3446
中图分类号
O59 [应用物理学];
学科分类号
摘要
A new structure for low-frequency flat-type piezoelectric vibratory gyroscopes is proposed, and is analyzed by the finite-element method. The H-type vibrator is arranged at the center of the vibratory gyroscope, and is connected to two 3-arm-type vibrators by a central arm. In-plane modes of vibration are used for driving and detecting in this structure. The structure is negligibly affected by a support because the displacements at the support part become very small. Using the metal structure with the piezoelectric ceramics for driving and detecting, it was clarified that the vibratory gyroscope operates as an angular rate sensor.
引用
收藏
页码:3446 / 3449
页数:4
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