陀螺经纬仪校准系统精确对中方法探讨

在陀螺经纬仪校准过程中,需要将陀螺经纬仪中心与天文定向时的观测中心对中,此对中精度直接影响其寻北精度的测量结果。本文设计了一种基于两个平行光管的双目标精确对中方法,经实验验证,该方法可实现被检陀螺经纬仪中心与天文定向时的观测中心的高精度对中,成功提高了陀螺经纬仪校准的准确性;为配合该方法的使用,设计了陀螺经纬仪对中调整机构,该机构可以实现陀螺经纬仪水平二维位移调整和高低姿态调整,通过姿态调整,可以与天文定向时的观测中心高精度对心,提高测量精度,并满足不同型号陀螺经纬仪校准需求。

Discussion on the Accurate Alignment Method of Gyro Theodolite Calibration System

In the process of gyro theodolite calibration, the center of gyro theodolite and observation center of astronomical orientation should be aligned. Its alignment accuracy directly affects the north-seeking precision. In this paper, a double target accurate alignment method based on two parallel collimators is introduced. This method can realize the high precision alignment between the center of gyro theodolite and the observation center of astronomical orientation. At the same time, in order to match the use of this method, a gyro theodolite position adjustment mechanism is introduced. The mechanism can realize horizontal two-dimensional displacement adjustment and high and low altitude adjustment of gyro theodolite. By adjusting the altitude, the center of the gyro theodolite and the observatory center of astronomical orientation are aligned with high precision, thus the measurement accuracy is improved and the calibration requirements of the different types of Gyro theodolite can be met.