Hemispherical Vibratory Gyroscope Performance Evaluation and Sensitivity Analysis with Capacitive Excitation

Sedaghati, R.; Mahmoudian, M.

doi:10.22061/jecei.2019.5565.239

Document Type : Original Research Paper

Authors

R. Sedaghati ¹
M. Mahmoudian ²

¹ Department of Electrical Engineering, Beyza Branch, Islamic Azad University, Beyza, Iran.

² Department of Electrical Engineering, Firouzabad Institute of Higher Education, Firouzabad, Iran.

10.22061/jecei.2019.5565.239

Abstract

Background and Objectives: Coriolis vibratory gyroscope is one of the most modern types of gyroscopes that has been substituted for the common gyroscopes with some differences in the test mass design and elastic suspension. According to the important features observed in the capacitive excitation of the actuators regarding the piezoelectric actuators, the operation principles and their formulations are completely changed, which require both two dimensional and finite element analysis to evaluate their optimal performance. Because the sensors are usually vibrating continuously while operation.
Methods: In this paper a general framework is presented that fully describes the influence of the parameters related to different frequency operating modes. The main idea of the vibration gyroscope is to replace the rotational rotor with a vibrational structure to utilize the effects of Coriolis force, which causes the secondary motion of a sensitive mass to match an angular velocity.
Results: In this paper, the sensitivity analysis and performance evaluation of a hemispherical vibrational gyroscope are discussed. The frequency split phenomenon, the sensed voltage around the resonance frequency and Young's modulus variation are also investigated.
Conclusion: Finally, the results of the simulated resonance frequencies are compared and validated with the mathematical and theoretical principles.

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Copyrights
©2019 The author(s). This is an open access article distributed under the terms of the Creative Commons Attribution (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, as long as the original authors and source are cited. No permission is required from the authors or the publishers.
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Main Subjects

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Journal of Electrical and Computer Engineering Innovations (JECEI)

Hemispherical Vibratory Gyroscope Performance Evaluation and Sensitivity Analysis with Capacitive Excitation

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Volume 7, Issue 1
Winter and Spring 2019
Pages 47-58

Hemispherical Vibratory Gyroscope Performance Evaluation and Sensitivity Analysis with Capacitive Excitation

References

References

Send comment about this article

Volume 7, Issue 1Winter and Spring 2019Pages 47-58

Volume 7, Issue 1
Winter and Spring 2019
Pages 47-58