微重力测量观测精度提高方法探讨-华南地震

文章信息/Info

Title:: Discussion on Improving the Observation Precision of Microgravimetry

Author(s):: CHEN Ming; (Geophysical Exploration Brigade of Guangdong Province,Guangzhou 510800,China)

摘要:: 随着城市地下空间探测的开展 , 微重力测量在该领域引入 , 研究 CG-5 重力仪重力测量精度提高成为保证微重力测量总精度的关键。通过野外资料整理 , 结合 CG-5 重力仪的仪器性能特点 , 研究其在不同振动环境下读数规律 , 并提出相关实际操作方法以保证测量精度 , 为城市地下空间探查方法研究中微重力测量提供可操作的一系列重力观测方法。通过该系列研究 , 总结了 CG-5 重力仪提高测量精度的方法 , 特别利用线性回归取数法满足了城市特别环境重力测量要求 , 确保了微重力测量在城市地下空间探测中顺利开展。

Abstract:: With the development of urban underground space exploration,microgravimetry is introduced in this field.The study of improvement of the measuring accuracy of CG-5 gravimeter gravimetry becomes the key to ensure the overall accuracy of microgravimetry. Based on the summary of field data and the performance characteristics of CG-5 gravimeter,this paper studies the reading law of the gravimeter under different vibration environments,and puts forward practical operation methods to ensure the measurement accuracy,which provides a series of microgravimetry operable methods for exploration of urban underground space. Through this series of studies,the methods to improve the measurement accuracy of CG-5 gravimeter are summarized. In particular, linear regression method of gravimeter reading is used to satisfy the requirements of urban special environment,which ensures development of gravity measurement smoothly in urban underground space exploration.