基于重力差方法检测重力仪一次项格值系数变化

英文篇名：STUDY ON CHANGE OF SCALE PARAMETERS IN LINEAR TERM OF GRAVIMETER WITH GRAVITY DIFFERENCE METHOD
中文刊名：大地测量与地球动力学
英文刊名：Journal of Geodesy and Geodynamics
作者：郝洪涛 ; 李辉 ; 刘子维 ; 韦进 ; 杨光亮
英文作者：Hao Hongtao1 ; 2 ; 3) ; Li Hui1 ; 2) ; Liu Ziwei1 ; 2) ; Wei Jin1 ; 2) and Yang Guangliang1 ; 2)(1)Institute of Seismology ; CEA ; Wuhan 4300712)Crustal Movement Laboratory ; Wuhan 4300713)Graduate School of Chinese Academy of Science ; Beijing 100039)
中文关键词：重力差 ; 一次项格值系数 ; 相对重力仪 ; 重力网 ; 规范
英文关键词：gravity difference ; scale parameters in linear term ; relative gravimeter ; gravity network ; standard
出版日期：2011-02-15
机构：中国地震局地震研究所;地壳运动与地球观测实验室;中国科学院研究生院;
年：2011
期：01
出版单位：大地测量与地球动力学

摘要

根据重复重力测量中重力差与重力仪一次项格值系数的关系,研究了基于重力差变化检测重力仪一次项格值系数变化的方法,并以滇西重力网1989—1996年观测资料为例,计算了G793、G854两台仪器一次项格值系数的变化结果。实验结果表明,利用该方法计算得到的一次项格值系数变化值精度能满足地震重力测量规范要求,对于重力仪一次项格值系数较明显的变化的检测结果是可信的。
On the basis of the relationship between gravity difference and scale parameters in linear term of relative gravimeter,a method to detect the change of parameters in linear term has been developed,and the change of parameters in linear term of G793 and G854 gravimeter were studied from the gravity data of western Yunnan area from1989 to 1996.The results show that the change of parameters in linear term of relative gravimeter can be calculated with high precision,and the method is reliable for detecting noticeable changes of parameters in linear term of relative gravimeter.

引文

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