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Sagnac Effect Compensations and Locked States in a Ring Laser Gyroscope
Woo-Seok Choi1, Kyu-Min Shim1, Kyung-Ho Chong1
1Agency for Defense Development, Daejeon 34186, Republic of Korea.
Sensors (Basel, Switzerland)
|February 11, 2023
Summary
Frequency lock-in in ring laser gyroscopes (RLGs) causes deadband issues, affecting rotation rate measurements. This study investigates lock-in by compensating the Sagnac effect, offering insights for optical gyroscope improvements.
Area of Science:
- Optics
- Inertial Navigation
Background:
- Frequency lock-in is a significant issue in ring laser gyroscopes (RLGs).
- This phenomenon creates a deadband, impairing the gyroscope's linear response to rotation rates.
- Understanding and mitigating lock-in is crucial for accurate optical gyroscope performance.
Purpose of the Study:
- To investigate the frequency lock-in phenomenon in RLGs.
- To develop a method for compensating the Sagnac effect to analyze lock-in.
- To provide insights for improving optical gyroscope performance and understanding locked states.
Main Methods:
- Frequency analysis was employed to study the lock-in phenomenon.
- A novel error function was defined to compensate for the Sagnac effect.
- The approach provides integrative and generalized viewpoints on locked states.
Main Results:
- The frequency lock-in phenomenon in RLGs was successfully investigated.
- Compensation of the Sagnac effect through frequency analysis was achieved.
- The study offers new possibilities for performance enhancements in optical gyroscopes.
Conclusions:
- The developed method provides a deeper understanding of locked states in RLGs.
- The findings contribute to improving the accuracy and reliability of optical gyroscopes.
- This research opens avenues for advanced RLG design and error correction.
Keywords:
Sagnac effect compensationSagnac interferometrydeadbandfrequency lock-inring laser gyroscopeMore Related Videos
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