相对重力测量值的改正

The Correction for Relatively Gravity Measurement

影响相对重力测量精度的主要因素有潮汐、气压、仪器高、零点飘移和地下水变化以及仪器格值函数等。文中研究了在中国重力基本网 2 0 0 0 (CGBN2 0 0 0 )精度要求下各影响因素的计算公式和其中存在的问题 ,给出了一组便于实际测量应用的计算公式 ;同时对重力仪格值因子的误差和选取。

Tides of the solid earth, air pressure, high of gravimeter, zero drift and underground water can affect the precision of relatively gravity measurement. This paper focuses on the research of the expressions of the correction for absolute gravity measurement, based on the accuracy degree of CGBN2000. Then, the dissertation mostly studies scale factors of LCR gravimeter and underground water.