Gyroscope Orientation Precision Research And Application

Gyro total station is the main measuring instrument of mine,tunnel and other engineering orientation,and the orientation precision of the gyroscope determines the quality of the project.Combining of Gyrotheodolite orientation precision of research at home and abroad,and through a large number of experimental data of GP3130R3 gyro theodolite orientation precision,lattice value,sling zero,instrument constant and orientation with reversal point method,data processing model is studied.And the research results are applied to the directional measurement of Shenyang Metro.The experimental results show that the method can effectively improve the accuracy of gyro orientation compared with the traditional method.The main research results of this paper are:1)A new method for the determination of the value of the partition plate is proposed,and a new method for the determination of the value of the partition plate is proposed;2)Analysis of the importance of zero correction and sling sling zero drift pattern,improved zero observation timing method;3 The correction model of the instrument constant with temperature is established,and the influence of the external temperature change on the instrument constant is analyzed;4)Analysis of the RTK and gyro directional accuracy and the feasibility of the combination of orientation;5)A method to reduce the error of the directional data processing model of the reversal point method is proposed.