人工质量体产生引力变化的正演计算  

Forward calculation of gravity changes by artificial mass

作　　者：潘军[1] 尹航[2] 周贤高[1] 杨晔[1] 

机构地区：[1]天津航海仪器研究所,天津300131 [2]中国国土资源航空物探遥感中心,北京100083

出　　处：《物探与化探》2015年第B12期7-11,共5页Geophysical and Geochemical Exploration

基　　金：国家高技术研究发展计划("863"计划)项目(2011AA060501)

摘　　要：将人工质量体产生的引力以及引力梯度变化的正演计算方法和结论作为精确给定重力和重力梯度变化量的数学基础,可用于测试和标定重力梯度测量装置。与正方形人工质量体相比,球形质量体产生的引力变化量近似于球体全部质量位于球心位置上的点源作用,便于计算和应用。为此,采用球状人工质量体作为引力激励的分析对象,形成正演计算方法。The forward calculation method and the conclusion of the gravity and the gravity gradient variation of the artificial mass body can be used as the mathematical foundation to precisely describe the gravity and gravity gradient variation. It can be used to test and calibrate the gravity gradient measurement device. Compared with the square body mass,the gravity variation generated by the spherical mass is similar to that of the total mass focused on the centroid. It is easy to calculate and apply. For this purpose,the spherical shape artificial mass body is used as the analysis object of gravity excitation to form a forward calculation method.

关 键 词：重力梯度 重力梯度测量 引力梯度 重力梯度张量 

分 类 号：P312.1[天文地球—固体地球物理学]