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Fabrication and Testing of Microfluidic Optomechanical Oscillators
Published on: May 29, 2014
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A 3D-printed microhemispherical shell resonator with electrostatic tuning for a Coriolis vibratory gyroscope.
Baoyin Hou1,2,3, Ye Zhu1, Chaofan He3,4
1College of Information Science and Electronic Engineering, Zhejiang University, Hangzhou, 310027 China.
Microsystems & Nanoengineering
|March 8, 2024
Summary
Researchers developed the first 3D-printable microhemispherical shell resonator for Coriolis vibrating gyroscopes. This simplified two-step fabrication process offers a cost-effective alternative to traditional MEMS technology for inertial navigation applications.
Area of Science:
- Microelectromechanical Systems (MEMS)
- Inertial Navigation
- Resonator Technology
Background:
- Microhemispherical resonant gyroscopes offer stability and miniaturization for whole-angle gyroscopes.
- Traditional MEMS fabrication for these resonators is complex and expensive.
Purpose of the Study:
- To design, fabricate, and characterize a 3D-printable microhemispherical shell resonator.
- To overcome the limitations of MEMS technology in resonator fabrication.
Main Methods:
- Utilized projection microstereolithography for a two-step fabrication process.
- Fabricated 3D high-aspect-ratio resonant structures and controllable capacitive air gaps.
- Characterized resonator performance, including electrostatic frequency tuning and quality factor.
Main Results:
- Achieved a simplified two-step fabrication process, significantly reducing complexity.
- Successfully fabricated high-aspect-ratio structures and tunable air gaps.
- Demonstrated a higher quality factor in air compared to typical MEMS resonators.
Conclusions:
- The 3D-printable resonator is feasible for rapid batch manufacturing.
- This technology paves the way for microhemispherical resonator gyroscopes in portable inertial navigation.
- The design concept has broader applications within the MEMS community.
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