PT1.4 - Design and Test Evaluation of Cluster Dither for Inertial Measurement Unit with 3-Axis Ring Laser Gyroscopes
- Event
- EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary) - Band
- Poster
- Chapter
- PT1 - Theory, Modelling, Design and Testing
- Author(s)
- C. Kim, J. An, K. Shim - Agency for Defense Development, Daejeon (South Korea)
- Pages
- 221 - 222
- DOI
- 10.5162/EUROSENSORSXXXVI/PT1.4
- ISBN
- 978-3-910600-03-4
- Price
- free
Abstract
The purpose of this paper is to present a cluster dither design for applying continuous sinusoidal vibration to 3-axis RLGs simultaneously. Ring laser gyroscope (RLG) exhibits a specific range, known as the lock-in region, wherein the input angular velocity is too small to be measured. To mitigate the lock-in effect, a continuous mechanical sinusoidal vibration is applied to the body of the RLG, emanating from a dither mechanism. The proposed cluster dither design is verified through modeling and simulation (M&S). The validation of the proposed design is confirmed by test evaluation and manufacturing assessment.