Error Analysis of Calibration Length Baseline based on μ-base Distance Meter

4th International Conference on Advances in Energy Resources and Environment Engineering

能源学;生态环境科学

Gu, Youyi^1 ; Jiang, Lixing^1 ; Wang, Ancheng^1 ; Wang, Li^1 ; Ou, Yangwen^1

Information Engineering University, Zhengzhou, Henan

450001, China^1

关键词: Analytical method;    Calculation results;    Comparative methods;    Distance meters;    Measurement methods;    Meteorological parameters;    Stable performance;    Yellow river embankments;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/237/3/032022/pdf
DOI  :  10.1088/1755-1315/237/3/032022

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper introduces in detail methods about calibration length baseline based on μ-base distance meter, and errors in the calculation of oblique distance model; the measurement of meteorological parameters and the correction of height difference are analyzed quantitatively by means of equation derivation. Through the calibration results of μ-base and invar tape, systematic differences between the two measurement methods were found out at the Yellow River Embankment Length Baseline in Zhengzhou. Based on a TS30 total station instrument with stable performance, according to the calculation results of "analytical method" and "comparative method", the accuracy of the two calibration results between μ-base and invar tape is compared and evaluated. In the end, some suggestions to improve the accuracy of using μ-base to calibrate length baseline are given.