The Design of Compensating System about the Incline Pedestal of Magnetic Suspension Gyroscope
In this paper, two-position seeking north project of magnetic suspension gyroscope is introduced. Two opposite points are sampled, which can counteract the constant excursion influence. And the rotation rate of the earth ωie is further decomposed in the gyro reference frame when the pedestal is leveled and is not leveled respectively. The branch rotation rate ω~g_(iex) and ω~g_(iex)(1) on the sensitivity axialx_g of gyro reference frame are gained. This branch can bring moment which can seek north automatically. The influence of the incline pedestal on the precision of seeking north is analyzed. In contrast with the pedestal that is leveled accurately, the error of the result of north seeking is γ·tgφ. This indicates that the transverse oblique angle γ of pedestal will influence the result of north seeking greatly. The error compensating system is designed based on the SX-003D-NULL oblique angle sensor. The result of seeking north is compared with the data of seeking north before compensation. Better effect of compensation is achieved by this system.
magnetic suspension gyroscope pedestal twoposition seeking north oblique angle sensor error compensation
Huang Xian-xiang Tan Li-long Zhong Qi-yuan Zhang Zhi-li
Xian Research Institute of Hi-Tech Section 202, Xian Research Institute of Hi-Tech Xian, China
国际会议
太原
英文
669-673
2010-10-22（万方平台首次上网日期，不代表论文的发表时间）