期刊名称:IOP Conference Series: Earth and Environmental Science
印刷版ISSN:1755-1307
电子版ISSN:1755-1315
出版年度:2019
卷号:237
期号:3
页码:032022
DOI:10.1088/1755-1315/237/3/032022
出版社:IOP Publishing
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.