通过对矿井常用的TJ-9000陀螺经纬仪进行温度实验测试,结合单因素方差分析,认为温度变化对于该陀螺寻北影响明显,并建立仪器陀螺主轴位置随温度变化相对变化方程。建立基于井上下温差变化仪器常数补偿方程,从必要性和精度可行性论证因温度变化而进行仪器常数补偿的优越性。 Through the temperature experiment of the commonly used TJ-9000 gyro theodolite in mine, combined with the one-way ANOVA, it is considered that the temperature variation has obvious effect on the north seeking of the gyro, and the relative change equation of the gyro spindle position with temperature is established. The compensation equation of instrument constant based on the variation of downwelling temperature is established, and the superiority of instrument constant compensation due to temperature variation is demonstrated from the necessity and accuracy feasibility.