Abstract

The article considers a new design option of a vertical gravity gradiometer. The main idea is to use a height-separated test mass and float, stiffly connected to each other and placed in a fluid, and the weight of the system is balanced by the buoyance force. Changing the gravity gradient results in small movement of the system, which is connected to the body by a soft spring. When measured by a sensor, this movement contains information about the gradient value. Despite the external simplicity of the idea, its implementation is quite difficult due to the influence of temperature variations. We discuss four options for creating the device, which demonstrate the fundamental possibility of implementing a measuring device with a resolution of hundredths to tenths of an eotvos.

中文翻译：

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垂直重力梯度仪的新设计选项

摘要

本文考虑了垂直重力梯度仪的新设计选项。主要思想是使用高度分隔的测试砝码和浮子，它们彼此刚性连接并放置在流体中，并且系统的重量由浮力平衡。改变重力梯度会导致系统的小运动，该系统通过软弹簧连接到车身。当通过传感器测量时，此运动包含有关梯度值的信息。尽管该想法在外部很简单，但是由于温度变化的影响，其实现还是非常困难的。我们讨论了创建设备的四个选项，这些选项展示了实现分辨率为eotvos的百分之一到十分之一的测量设备的基本可能性。