25 October 2016 Modeling and simulation on temperature performance in fiber optic gyroscope fiber coil of shipborne strapdown inertial navigation system
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Proceedings Volume 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage; 101580S (2016) https://doi.org/10.1117/12.2246797
Event: International Symposium on Optoelectronic Technology and Application 2016, 2016, Beijing, China
Abstract
Compared with the traditional gyros, Fiber optic gyroscope (FOG) based on sagnac effect has the significant features, such as, long life, low cost, wide dynamic range, etc. These features have developed new applications of the gyroscope not only in industrial application area but also in aerospace application area. Now, the FOG has played a very important role in shipborne Strapdown Inertial Navigation System (SINS). The fiber coil, as one of the most critical components in FOG, is extremely sensitive to changes in temperature. Here, by study the environment temperature in shipborne SINS, the temperature performance of the FOG was analyzed. Firstly, on the base of the research about the theory of Shupe non-reciprocal errors caused by temperature, the discrete mathematics formula of the temperature error in FOG of SINS was built .Then the element model of the fiber coil in SINS was built based on the discrete model of the fiber coil in temperature error in FOG. A turn-by-turn quantization temperature bias error model is establish. Finally, based on the temperature models mentioned above, the temperature performance of FOG in shipborne SINS was analyzed. With finite element analysis, numerical simulations were carried out to quantitatively analyze the angular error induced by temperature excitation in SINS. The model was validated by comparing numerical and experimental results.
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Yueze Wang, Yueze Wang, Lin Ma, Lin Ma, Hao Yu, Hao Yu, Hongyu Gao, Hongyu Gao, Yujie Yuan, Yujie Yuan, } "Modeling and simulation on temperature performance in fiber optic gyroscope fiber coil of shipborne strapdown inertial navigation system", Proc. SPIE 10158, Optical Communication, Optical Fiber Sensors, and Optical Memories for Big Data Storage, 101580S (25 October 2016); doi: 10.1117/12.2246797; https://doi.org/10.1117/12.2246797
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