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词汇 Gravity gradient
分类 英语词汇 英语翻译词典
释义

Gravity gradient

英语例句库

Gravity gradient is the second order derivative of gravitational potential, which can be observed by satellite gradiometer.

摘要重力梯度为重力位的二阶导数,可以通过星载梯度仪进行观测。

英语百科

Gravity gradiometry

(重定向自Gravity gradient)
Fig 2. Vertical gravity and gravity gradient signals from a point source buried at 1 km depth

Gravity gradiometry is the study and measurement of variations in the acceleration due to gravity. The gravity gradient is the spatial rate of change of gravitational acceleration.

Gravity gradiometry is used by oil and mineral prospectors to measure the density of the subsurface, effectively the rate of change of rock properties. From this information it is possible to build a picture of subsurface anomalies which can then be used to more accurately target oil, gas and mineral deposits. It is also used to image water column density, when locating submerged objects, or determining water depth (bathymetry). Physical scientists use gravimeters to determine the exact size and shape of the earth and they contribute to the gravity compensations applied to inertial navigation systems.

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