【摘要】 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 )更多还原

【Abstract】 A novel reentrant fiber optical rotation sensor (RE FORS) is designed and demonstrated. The analytic equations of the optical transmitance, the phase sensitivity and the resolution of RE FORS were deduced. The contribution to the sensitivity and the resolution of RE FORS the coupling ratio of the resonator coupler was estimated. According to the theoretical considerations of the sensitivity and the resolution, the setup for investigating RE FORS with 200 meter length of ring resonator (RR) was developed. As shown by the test results, the RE FORS setup has the constant bias of 0.2(°/h) and the variance of random drift rate better than 0.1(°/h) (the integration time of 10 s and the sampling length of 10 min were used).更多还原