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在重力观测中,影响观测精度的各项因素中,除温度的影响外,主要就是记录格值测定方法是否完善、标定是否准确。除了一般性的问题外,各台还有因其本身的环境条件而引起的具体问题。本文着重讨论郫县重力台使用 GS—15重力仪作静态观测中影响其记录格值的一些因素。郫县台历年重力测定记录格值资料示于图1.可以看出,1981年以前,记录格值变化
In gravitational observation, among the various factors that affect the observation accuracy, except for the influence of temperature, the main method is to determine whether the method of measuring grid values is perfect and the calibration is accurate. In addition to the general issues, each has its own specific problems caused by its own environmental conditions. This article focuses on the Shexian gravity station using GS-15 gravity meter for static observation of some factors that affect the grid value. Yixian calendar calendar year gravimetric record grid value data is shown in Figure 1. It can be seen that before 1981, record cell value changes