Structural Analysis of Disk Resonance Gyroscope.

Area of Science:

• Mechanical Engineering
• Sensor Technology
• Applied Physics

Background:

• Disk resonator gyroscopes (DRGs) are crucial inertial sensors.
• Improving DRG performance, specifically frequency split and quality factor (Q), is essential for high-precision applications.
• Existing DRG designs face limitations in achieving optimal performance metrics.

Purpose of the Study:

• To present two novel design methodologies for enhancing DRG performance.
• To decrease the frequency split in DRGs.
• To increase the quality factor (Q) of DRGs.

Main Methods:

• Utilized Finite Element Method (FEM) software to identify critical structure parameters influencing frequency split and Q value.
• Designed and fabricated multiple DRG devices with varied parameters based on simulation insights.
• Conducted experimental testing to validate simulation results and assess device performance.

Main Results:

• FEM analysis successfully identified key parameters affecting frequency split and Q.
• Experimental results closely matched simulation predictions.
• Achieved a DRG with a high Q value and a low frequency split, meeting high-performance requirements.

Conclusions:

• The proposed design methods effectively improve DRG performance.
• The optimized DRGs are suitable for applications demanding high precision and reliability.
• Identified limitations and outlined future research directions for further advancements.