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Method and system for indirectly measuring gravity

A gravity and indirect technology, applied in the field of measurement, can solve problems such as complex structure and harsh use conditions, and achieve the effect of solving low practicability, strong practicability and important market value

Active Publication Date: 2021-08-27
WUHAN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

However, its structure is complex and the conditions of use are harsh

Method used

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  • Method and system for indirectly measuring gravity
  • Method and system for indirectly measuring gravity

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Embodiment Construction

[0024] The technical solution of the present invention is specifically described below in conjunction with the examples.

[0025] The gravity of the earth is actually the resultant force of gravitation and inertial force. The present invention utilizes the gravitational force produced by celestial bodies, the gravitational force produced by the earth, and the relationship between other inertial forces are constantly changing, resulting in extremely weak changes in the direction of gravity at this place. The direction of force is the direction of acceleration. The magnitude of acceleration and force proportional to the size. Measuring acceleration is therefore equivalent to measuring force. The change over time at each position is different, and by regularly monitoring the change in the direction of the acceleration of gravity at this position, the gravity can be reversed. Changes in the direction of gravity can be measured with an inclinometer.

[0026] Assuming somewhere o...

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Abstract

The invention provides a method and system for indirectly measuring gravity. The method comprises the following steps that: gravitational acceleration of a to-be-measured position is changed based on synthesis of universal gravitational force generated by a celestial body, universal gravitational force generated by the earth and other inertia force influences, and the direction change of the gravitational acceleration of the to-be-measured position is regularly monitored, so that a gravity measurement result of the to-be-measured position is obtained through reverse deduction; when the direction change of the gravitational acceleration is monitored, the direction of the gravity at each moment is measured to obtain direction change observation data of the gravitational acceleration; the approximate value of an acceleration vector caused by the earth at the current position is obtained according to the coordinates of the to-be-measured position and serves as an initial solution, the direction change estimation data of the gravitational acceleration is calculated, and on the basis of the direction change observation data of the gravitational acceleration, iterative linearization solving is carried out to obtain a gravitational measurement result. According to the method and system are easy and convenient to implement and are high in practicability. With the method and system adopted, the problems of low practicability and inconvenient practical application in the prior art are solved; and during implementation, the change of the gravity direction can be measured just through a clinometer.

Description

technical field [0001] The invention relates to the technical field of measurement, in particular to a technical solution for indirectly measuring gravity. Background technique [0002] Gravity measurement plays an important role in geodesy, geophysics, resource exploration, marine research and military affairs. The current gravity measurement methods mainly include laser interference, atomic interference, springs, superconductivity and other technologies. However, its structure is complex and the conditions of use are harsh. Contents of the invention [0003] In order to solve the deficiencies in the above-mentioned prior art, the present invention proposes a technical solution for indirectly measuring gravity. [0004] In order to achieve the above object, the present invention proposes a method for indirectly measuring gravity, which is based on the synthesis of the gravitational force produced by celestial bodies, the gravitational force produced by the earth, and ot...

Claims

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Application Information

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IPC IPC(8): G01V7/00G06F17/12G06F17/16
CPCG01V7/00G06F17/12G06F17/16G01V7/06
Inventor 张涛
Owner WUHAN UNIV
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