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对新型再入式光纤角速率传感器进行了理论分析与实验研究 ,推导了它的光强透过率、灵敏度以及极限分辨率的解析表达式 ,分析了环形谐振腔中定向耦合器的耦合比与灵敏度以及极限分辨率的关系 ,并依据理论分析 ,研制了采用长度为 2 0 0m环形谐振腔的再入式光纤角速率传感器的实验装置。实验结果表明 ,这一实验装置具有0 2 (° h)的常值漂移以及优于 0 1(° h)的零偏稳定性 (10s积分时间和 10min采样样本长度 )
The theoretical analysis and experimental research on the new reentrant fiber optic angular rate sensor have been carried out. The analytical expressions of light transmittance, sensitivity and limit resolution have been deduced. The coupling ratio of the directional coupler in ring resonator and Sensitivity and limit resolution. Based on the theoretical analysis, an experimental setup of a reentrant fiber optic angular rate sensor with a 200-m ring resonator was developed. Experimental results show that this experimental setup has a constant drift of 0 2 (° h) and a bias stability of better than 0 1 (° h) (10 s integration time and 10 min sampling sample length)