Development of an experimentally verified high-fidelity model of a quartz flexible accelerometer

Date

2024-1

Author

Özmen, Hasan Baran

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Quartz Flexible Accelerometers (QFA) are one of the most commonly utilized accelerometer types within tactical and navigational grade inertial navigation systems, owing to their low noise, long-term stability and dynamic performance characteristics. This thesis focuses on the development and validation of a comprehensive mathematical model for the QFA, aiming to enhance the understanding and dynamic performance evaluation of this sensor type. The study involves modelling of the accelerometer both as an open loop system and closed loop system. Subsequently, the proposed models are experimentally verified through tests with open and closed loop test prototypes. The experimental results confirm the accuracy and reliability of the developed model, demonstrating its capability to predict the sensor's dynamic behavior in real-world scenarios. The closed loop model is then used to investigate the effects of various design parameters on dynamic performance. Finally, this experimentally validated closed loop system is expected to serve as a high-fidelity model for further optimization and design improvement studies on the QFAs.

Subject Keywords

Quartz flexible accelerometer, Inertial sensor, Closed loop system modelling, Experimental verification, High-fidelity model

URI

https://hdl.handle.net/11511/108436

Collections

Graduate School of Natural and Applied Sciences, Thesis