Version 1
: Received: 22 December 2023 / Approved: 25 December 2023 / Online: 25 December 2023 (04:47:20 CET)
How to cite:
Yu, H.; Kim, T.; Ju, S.; Kwon, T. Using Chamfered Mold to Manufacture Micro Glass-Blown Shell Resonator for Gyroscopes. Preprints2023, 2023121797. https://doi.org/10.20944/preprints202312.1797.v1
Yu, H.; Kim, T.; Ju, S.; Kwon, T. Using Chamfered Mold to Manufacture Micro Glass-Blown Shell Resonator for Gyroscopes. Preprints 2023, 2023121797. https://doi.org/10.20944/preprints202312.1797.v1
Yu, H.; Kim, T.; Ju, S.; Kwon, T. Using Chamfered Mold to Manufacture Micro Glass-Blown Shell Resonator for Gyroscopes. Preprints2023, 2023121797. https://doi.org/10.20944/preprints202312.1797.v1
APA Style
Yu, H., Kim, T., Ju, S., & Kwon, T. (2023). Using Chamfered Mold to Manufacture Micro Glass-Blown Shell Resonator for Gyroscopes. Preprints. https://doi.org/10.20944/preprints202312.1797.v1
Chicago/Turabian Style
Yu, H., Seongmin Ju and Tae-Yoon Kwon. 2023 "Using Chamfered Mold to Manufacture Micro Glass-Blown Shell Resonator for Gyroscopes" Preprints. https://doi.org/10.20944/preprints202312.1797.v1
Abstract
We simulated the glass-blowing process to model a shell resonator, which is a key component in MRIG (Micro Rate Integrating Gyroscope), using the finite elements method to solve a non-isothermal problem. We also calculated the mechanical characteristics of the modeled resonator, including effective mass, eigenfrequencies, angular gain, and energy loss, to predict the resonator's performance as a gyroscope. One key aspect we addressed is the bending of the resonator's rim toward the stem during glass-blowing process. This phenomenon occurs due to increased heat loss at the mold's edge and reduced heat flux at the side of the Gaussian heat source. To mitigate rim bending and the subsequent reduction in capacitance between the rim and 3D electrodes, which can degrade performance in micro glass-blown shell resonators for gyroscopes, we propose two potential mold solutions. The first is using a short-stem mold, which requires extensive polishing to eliminate the bent rim. The second solution is using a mold with a suitable chamfer at the edge, resulting in a straight rim. To quantitatively compare resonators created by these two types of molds, we calculated the noise factor for predicting its gyroscope performance. From these calculations, we find out that using the chamfered mold enables us to increase in the resonator's effective mass, eigenfrequency, angular gain, and quality factor, consequently reducing the noise factor compared to using the short-stem mold. This simulation process will assist us in getting insight into understanding a shell resonator as a gyroscope, designing a mold and determining experimental conditions.
Copyright:
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
