CAJ | 학술논문

Y波导是数字闭环光纤陀螺的核心器件,其半波电压的稳定性直接影响光纤陀螺标度因数的稳定性.工作温度是影响Y波导半波电压稳定性的主要因素,从Y波导物理特性的理论推导和Y波导半波电压随温度变化的实验可以得到半波电压与温度近似成线性规律,实验中半波电压随温度变化线性拟合中产生的非线性误差主要受Y波导的外电场和机械应力的影响.通过对Y波导的半波电压进行标定补偿,使陀螺处于最佳调制状态,从而使其在整个工作温度内获得高稳定性的标度因数.
Y파도시수자폐배광섬타라적핵심기건,기반파전압적은정성직접영향광섬타라표도인수적은정성.공작온도시영향Y파도반파전압은정성적주요인소,종Y파도물리특성적이론추도화Y파도반파전압수온도변화적실험가이득도반파전압여온도근사성선성규률,실험중반파전압수온도변화선성의합중산생적비선성오차주요수Y파도적외전장화궤계응력적영향.통과대Y파도적반파전압진행표정보상,사타라처우최가조제상태,종이사기재정개공작온도내획득고은정성적표도인수.
Y waveguide is a key component of digital closed-loop fiber optic gyroscope, and the stability of its half-wave voltage directly affects the scale factor stability of FOG. Working temperature is the main factor that influences on the stability of Y waveguide half-wave voltage. Theoretical deduction of Y waveguide physical properties and experiment of half-wave voltage changing along with temperature indicate that the relationship between half-wave voltage and temperature is nearly linear. The non-linear errors are induced by Y waveguide electric field and mechanical stress. Through calibrating the Y waveguide half-wave voltage and making compensation, the optimal modulation state of FOG can be achieved and highly stable FOG scale factor can be obtained.