Abstract: We have investigated fiber optic gyroscopes that use phase-modulation signal processing for use in automobiles. These gyroscopes use an integrated optical gyrochip and low-cost elliptical-core polarization-maintaining optical fiber. Fiber-to-fiber insertion loss deviation is less than $POM 0.4 dB at a wavelength of 0.83 $mu@m over a temperature range of $MIN@30 to $PLU@80$DGR@C, while the core dimensions of pigtailed fiber are as small as 4 $MUL 1 $mu@m$+2$/. A gyroscope was developed for navigation systems and on board testing is now being performed. A gyroscope for chassis control systems is also being developed. !4
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机译：摘要：我们研究了在汽车中使用相位调制信号处理的光纤陀螺仪。这些陀螺仪使用集成的光学陀螺仪芯片和低成本的椭圆芯偏振保持光纤。在$ MIN @ 30到$ PLU @ 80 $ DGR @ C的温度范围内，波长为0.83 $ mu @ m时，光纤到光纤的插入损耗偏差小于$ POM 0.4 dB，而尾纤的纤芯尺寸最小为4 $ MUL 1 $ mu @ m $ + 2 $ /。陀螺仪是为导航系统开发的，目前正在进行车载测试。用于底盘控制系统的陀螺仪也正在开发中。 ！4
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