In practical uses, gyrowheel or gyrorotor often drifts away from its gyroaxis because of various factors, thus, influencing its azimuth measurements.

• 1型陀螺仪采用框架式陀螺系统,在实际工作中,由于受多种因素的影响,陀螺转子在其旋转轴上存在漂移现象,影响方位测量的精度。