【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。更多还原

【Abstract】 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.更多还原