Vibration modes and resonant frequencies of a new tuning fork with 4 vibrating arms

被引：4

作者：

Atoji, N ^{[1
]}

Murakami, M ^{[1
]}

Sugawara, S ^{[1
]}

Kudo, S ^{[1
]}

机构：

[1] ISHINOMAKI SENSHU UNIV,FAC SCI & TECHNOL,DEPT ELECT & MAT,ISHINOMAKI 986,JAPAN

来源：

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS | 1996年 / 35卷 / 9B期

关键词：

vibratory gyroscope; angular rate sensor; finite element analysis; tuning fork;

D O I：

10.1143/JJAP.35.5034

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A new tuning fork of the plane structure with 4 vibrating arms is proposed here. First, the mode of vibration and the resonant frequency were clarified by finite element analysis and experimental investigation. As a result: it became clear that there are modes of vibration suitable for application to a vibratory gyroscope. The influence of the support on these modes is fairly small in comparison with a conventional tuning fork. The operation as a vibratory gyroscope was confirmed experimentally. Since the tuning fork has 4 vibrating arms, the drive and detection can each be carried out using one pair of arms. The influence of acceleration on the output voltage is small because differential detection is realized electrically by using a pair of arms. Also, the electrode arrangement is simplified. It was clarified that the new tuning fork operates as a high-performance vibratory gyroscope with the above advantages.

引用

页码：5034 / 5037

页数：4